A DNA is placed in a test tube containing fluorescently tagged nucleotides. DNA replication is induced. After replication. a. only one DNA molecule would have two fluorescent strands. b. both strands of each DNA molecule would be half-fluorescent. c. each DNA molecule would have one fluorescent strand. d. both DNA molecules would be completely fluorescent.

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Answer 1

Textbook Question

Chapter 8, Problem 1MCQ

A DNA is placed in a test tube containing fluorescently tagged nucleotides. DNA replication is induced. After replication.

a.	only one DNA molecule would have two fluorescent strands.
b.	both strands of each DNA molecule would be half-fluorescent.
c.	each DNA molecule would have one fluorescent strand.
d.	both DNA molecules would be completely fluorescent.

Expert Solution & Answer

Summary Introduction

Introduction:

DNA is a double-stranded nucleic acid that is responsible for the genetic inheritance. Each strand of DNA is a double helix composed of two antiparallel strands of nucleotides. The complementary nucleotides form hydrogen bonds with each other and hold DNA double helix together.

Answer to Problem 1MCQ

Correct answer:

A DNA is placed in a test tube containing fluorescently tagged nucleotides. DNA replication is induced. After replication, each DNA molecule will have one fluorescent strand. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Option c. is given as “each DNA molecule would have one fluorescent strand.”

DNA is the genetic molecule and exhibits a double helix structure. According to Watson and Crick, DNA replication is semi-conservative, which suggests that during replication, one strand of DNA will be original and another will be a new strand. In the presence of fluorescent nucleotides after DNA replication, only the new strand will be fluorescent. Hence, option c. is correct.

Reason for incorrect answer:

Option a. is given as, “only one DNA molecule would have two fluorescent strands.”

During DNA replication one of the DNA strands acts as a template and a new strand is formed over it. Therefore, one DNA molecule will always be nonfluorescent if only one replication cycle happens. Hence, option a. is incorrect.

Option b. is given as, “both strands of each DNA molecule would be half-fluorescent.”

During replication, the new strand is formed based on the original strand. Hence one full strand acting as a template will be nonfluorescent, and the new strands will be fluorescent. Hence, option b. is incorrect.

Option d. is given as, “both DNA molecules would be completely fluorescent.”

Both DNA molecules will be completely fluorescent if multiple replication cycles happen. Still the original DNA strands will be nonfluorescent and will have new fluorescent strands. Hence, option d. is incorrect.

Hence, the options a., b., and d. are incorrect.

Conclusion

DNA replication is semiconservative, which means that during replication the original DNA strand will act as a template and new strand is formed over it. Thus, the correct option is c.

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Question #3: In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming there was just one gene conferring gametophytic obligate apomixis, and that the two parents are inbreds, what would be the consequences of such a cross if: a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the parental cross. b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the…

Question #5: Assume that two genes are identified that confer gametophytic facultative apomixis in soybean. The genes show independent assortment. Recessive alleles at both loci are required for the facultative apomixis. Facultative apomixis is triggered when the temperature at pollination is above 20 degrees C. At temperatures below 20 degrees C, all reproduction is sexual, independent of genotype. A facultative apomict male, capable of producing viable pollen, was crossed with a sexually reproducing female. Assuming the parents are completely inbred, what are the predicted phenotypic ratios (apomict: non-apomict) for the F1, F2, and DH (F1-derived) generations at each of the following temperatures*: a) 15°C? b) 25°C? *for full credit, show crosses and genotypes where appropriate. Remember to position the female first (left side) in the cross. Type your answer here:

Answer 2

Textbook Question

Chapter 8, Problem 1MCQ

A DNA is placed in a test tube containing fluorescently tagged nucleotides. DNA replication is induced. After replication.

a.	only one DNA molecule would have two fluorescent strands.
b.	both strands of each DNA molecule would be half-fluorescent.
c.	each DNA molecule would have one fluorescent strand.
d.	both DNA molecules would be completely fluorescent.

Expert Solution & Answer

Summary Introduction

Introduction:

DNA is a double-stranded nucleic acid that is responsible for the genetic inheritance. Each strand of DNA is a double helix composed of two antiparallel strands of nucleotides. The complementary nucleotides form hydrogen bonds with each other and hold DNA double helix together.

Answer to Problem 1MCQ

Correct answer:

A DNA is placed in a test tube containing fluorescently tagged nucleotides. DNA replication is induced. After replication, each DNA molecule will have one fluorescent strand. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Option c. is given as “each DNA molecule would have one fluorescent strand.”

DNA is the genetic molecule and exhibits a double helix structure. According to Watson and Crick, DNA replication is semi-conservative, which suggests that during replication, one strand of DNA will be original and another will be a new strand. In the presence of fluorescent nucleotides after DNA replication, only the new strand will be fluorescent. Hence, option c. is correct.

Reason for incorrect answer:

Option a. is given as, “only one DNA molecule would have two fluorescent strands.”

During DNA replication one of the DNA strands acts as a template and a new strand is formed over it. Therefore, one DNA molecule will always be nonfluorescent if only one replication cycle happens. Hence, option a. is incorrect.

Option b. is given as, “both strands of each DNA molecule would be half-fluorescent.”

During replication, the new strand is formed based on the original strand. Hence one full strand acting as a template will be nonfluorescent, and the new strands will be fluorescent. Hence, option b. is incorrect.

Option d. is given as, “both DNA molecules would be completely fluorescent.”

Both DNA molecules will be completely fluorescent if multiple replication cycles happen. Still the original DNA strands will be nonfluorescent and will have new fluorescent strands. Hence, option d. is incorrect.

Hence, the options a., b., and d. are incorrect.

Conclusion

DNA replication is semiconservative, which means that during replication the original DNA strand will act as a template and new strand is formed over it. Thus, the correct option is c.

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Answer 3

Textbook Question

Chapter 8, Problem 1MCQ

A DNA is placed in a test tube containing fluorescently tagged nucleotides. DNA replication is induced. After replication.

a.	only one DNA molecule would have two fluorescent strands.
b.	both strands of each DNA molecule would be half-fluorescent.
c.	each DNA molecule would have one fluorescent strand.
d.	both DNA molecules would be completely fluorescent.

Expert Solution & Answer

Summary Introduction

Introduction:

DNA is a double-stranded nucleic acid that is responsible for the genetic inheritance. Each strand of DNA is a double helix composed of two antiparallel strands of nucleotides. The complementary nucleotides form hydrogen bonds with each other and hold DNA double helix together.

Answer to Problem 1MCQ

Correct answer:

A DNA is placed in a test tube containing fluorescently tagged nucleotides. DNA replication is induced. After replication, each DNA molecule will have one fluorescent strand. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Option c. is given as “each DNA molecule would have one fluorescent strand.”

DNA is the genetic molecule and exhibits a double helix structure. According to Watson and Crick, DNA replication is semi-conservative, which suggests that during replication, one strand of DNA will be original and another will be a new strand. In the presence of fluorescent nucleotides after DNA replication, only the new strand will be fluorescent. Hence, option c. is correct.

Reason for incorrect answer:

Option a. is given as, “only one DNA molecule would have two fluorescent strands.”

During DNA replication one of the DNA strands acts as a template and a new strand is formed over it. Therefore, one DNA molecule will always be nonfluorescent if only one replication cycle happens. Hence, option a. is incorrect.

Option b. is given as, “both strands of each DNA molecule would be half-fluorescent.”

During replication, the new strand is formed based on the original strand. Hence one full strand acting as a template will be nonfluorescent, and the new strands will be fluorescent. Hence, option b. is incorrect.

Option d. is given as, “both DNA molecules would be completely fluorescent.”

Both DNA molecules will be completely fluorescent if multiple replication cycles happen. Still the original DNA strands will be nonfluorescent and will have new fluorescent strands. Hence, option d. is incorrect.

Hence, the options a., b., and d. are incorrect.

Conclusion

DNA replication is semiconservative, which means that during replication the original DNA strand will act as a template and new strand is formed over it. Thus, the correct option is c.

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Answer 4

Textbook Question

Chapter 8, Problem 1MCQ

A DNA is placed in a test tube containing fluorescently tagged nucleotides. DNA replication is induced. After replication.

a.	only one DNA molecule would have two fluorescent strands.
b.	both strands of each DNA molecule would be half-fluorescent.
c.	each DNA molecule would have one fluorescent strand.
d.	both DNA molecules would be completely fluorescent.

Expert Solution & Answer

Summary Introduction

Introduction:

DNA is a double-stranded nucleic acid that is responsible for the genetic inheritance. Each strand of DNA is a double helix composed of two antiparallel strands of nucleotides. The complementary nucleotides form hydrogen bonds with each other and hold DNA double helix together.

Answer to Problem 1MCQ

Correct answer:

A DNA is placed in a test tube containing fluorescently tagged nucleotides. DNA replication is induced. After replication, each DNA molecule will have one fluorescent strand. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Option c. is given as “each DNA molecule would have one fluorescent strand.”

DNA is the genetic molecule and exhibits a double helix structure. According to Watson and Crick, DNA replication is semi-conservative, which suggests that during replication, one strand of DNA will be original and another will be a new strand. In the presence of fluorescent nucleotides after DNA replication, only the new strand will be fluorescent. Hence, option c. is correct.

Reason for incorrect answer:

Option a. is given as, “only one DNA molecule would have two fluorescent strands.”

During DNA replication one of the DNA strands acts as a template and a new strand is formed over it. Therefore, one DNA molecule will always be nonfluorescent if only one replication cycle happens. Hence, option a. is incorrect.

Option b. is given as, “both strands of each DNA molecule would be half-fluorescent.”

During replication, the new strand is formed based on the original strand. Hence one full strand acting as a template will be nonfluorescent, and the new strands will be fluorescent. Hence, option b. is incorrect.

Option d. is given as, “both DNA molecules would be completely fluorescent.”

Both DNA molecules will be completely fluorescent if multiple replication cycles happen. Still the original DNA strands will be nonfluorescent and will have new fluorescent strands. Hence, option d. is incorrect.

Hence, the options a., b., and d. are incorrect.

Conclusion

DNA replication is semiconservative, which means that during replication the original DNA strand will act as a template and new strand is formed over it. Thus, the correct option is c.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

Introduction:

DNA is a double-stranded nucleic acid that is responsible for the genetic inheritance. Each strand of DNA is a double helix composed of two antiparallel strands of nucleotides. The complementary nucleotides form hydrogen bonds with each other and hold DNA double helix together.

Answer to Problem 1MCQ

Correct answer:

A DNA is placed in a test tube containing fluorescently tagged nucleotides. DNA replication is induced. After replication, each DNA molecule will have one fluorescent strand. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Option c. is given as “each DNA molecule would have one fluorescent strand.”

DNA is the genetic molecule and exhibits a double helix structure. According to Watson and Crick, DNA replication is semi-conservative, which suggests that during replication, one strand of DNA will be original and another will be a new strand. In the presence of fluorescent nucleotides after DNA replication, only the new strand will be fluorescent. Hence, option c. is correct.

Reason for incorrect answer:

Option a. is given as, “only one DNA molecule would have two fluorescent strands.”

During DNA replication one of the DNA strands acts as a template and a new strand is formed over it. Therefore, one DNA molecule will always be nonfluorescent if only one replication cycle happens. Hence, option a. is incorrect.

Option b. is given as, “both strands of each DNA molecule would be half-fluorescent.”

During replication, the new strand is formed based on the original strand. Hence one full strand acting as a template will be nonfluorescent, and the new strands will be fluorescent. Hence, option b. is incorrect.

Option d. is given as, “both DNA molecules would be completely fluorescent.”

Both DNA molecules will be completely fluorescent if multiple replication cycles happen. Still the original DNA strands will be nonfluorescent and will have new fluorescent strands. Hence, option d. is incorrect.

Hence, the options a., b., and d. are incorrect.

Conclusion

DNA replication is semiconservative, which means that during replication the original DNA strand will act as a template and new strand is formed over it. Thus, the correct option is c.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

DNA is a double-stranded nucleic acid that is responsible for the genetic inheritance. Each strand of DNA is a double helix composed of two antiparallel strands of nucleotides. The complementary nucleotides form hydrogen bonds with each other and hold DNA double helix together.

Answer to Problem 1MCQ

Correct answer:

A DNA is placed in a test tube containing fluorescently tagged nucleotides. DNA replication is induced. After replication, each DNA molecule will have one fluorescent strand. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Option c. is given as “each DNA molecule would have one fluorescent strand.”

DNA is the genetic molecule and exhibits a double helix structure. According to Watson and Crick, DNA replication is semi-conservative, which suggests that during replication, one strand of DNA will be original and another will be a new strand. In the presence of fluorescent nucleotides after DNA replication, only the new strand will be fluorescent. Hence, option c. is correct.

Reason for incorrect answer:

Option a. is given as, “only one DNA molecule would have two fluorescent strands.”

During DNA replication one of the DNA strands acts as a template and a new strand is formed over it. Therefore, one DNA molecule will always be nonfluorescent if only one replication cycle happens. Hence, option a. is incorrect.

Option b. is given as, “both strands of each DNA molecule would be half-fluorescent.”

During replication, the new strand is formed based on the original strand. Hence one full strand acting as a template will be nonfluorescent, and the new strands will be fluorescent. Hence, option b. is incorrect.

Option d. is given as, “both DNA molecules would be completely fluorescent.”

Both DNA molecules will be completely fluorescent if multiple replication cycles happen. Still the original DNA strands will be nonfluorescent and will have new fluorescent strands. Hence, option d. is incorrect.

Hence, the options a., b., and d. are incorrect.

Conclusion

DNA replication is semiconservative, which means that during replication the original DNA strand will act as a template and new strand is formed over it. Thus, the correct option is c.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

DNA is a double-stranded nucleic acid that is responsible for the genetic inheritance. Each strand of DNA is a double helix composed of two antiparallel strands of nucleotides. The complementary nucleotides form hydrogen bonds with each other and hold DNA double helix together.

Answer 12

Answer to Problem 1MCQ

Correct answer:

A DNA is placed in a test tube containing fluorescently tagged nucleotides. DNA replication is induced. After replication, each DNA molecule will have one fluorescent strand. Hence, the correct answer is option c.

Answer 13

Explanation of Solution

Reason for correct answer:

Option c. is given as “each DNA molecule would have one fluorescent strand.”

DNA is the genetic molecule and exhibits a double helix structure. According to Watson and Crick, DNA replication is semi-conservative, which suggests that during replication, one strand of DNA will be original and another will be a new strand. In the presence of fluorescent nucleotides after DNA replication, only the new strand will be fluorescent. Hence, option c. is correct.

Reason for incorrect answer:

Option a. is given as, “only one DNA molecule would have two fluorescent strands.”

During DNA replication one of the DNA strands acts as a template and a new strand is formed over it. Therefore, one DNA molecule will always be nonfluorescent if only one replication cycle happens. Hence, option a. is incorrect.

Option b. is given as, “both strands of each DNA molecule would be half-fluorescent.”

During replication, the new strand is formed based on the original strand. Hence one full strand acting as a template will be nonfluorescent, and the new strands will be fluorescent. Hence, option b. is incorrect.

Option d. is given as, “both DNA molecules would be completely fluorescent.”

Both DNA molecules will be completely fluorescent if multiple replication cycles happen. Still the original DNA strands will be nonfluorescent and will have new fluorescent strands. Hence, option d. is incorrect.

Hence, the options a., b., and d. are incorrect.

Answer 14

Conclusion

DNA replication is semiconservative, which means that during replication the original DNA strand will act as a template and new strand is formed over it. Thus, the correct option is c.

Answer 15

Ch. 8.1 - Explain the roles of mitotic cell division,...Ch. 8.1 - Prob. 2MC Ch. 8.2 - Prob. 1MC Ch. 8.2 - What are the steps of DNA replication?Ch. 8.2 - Prob. 3MC Ch. 8.2 - Prob. 4MC Ch. 8.3 - Prob. 1MC Ch. 8.3 - Prob. 2MC Ch. 8.4 - Prob. 1MC Ch. 8.4 - Prob. 2MC

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