Photosynthetic bacteria are the group of bacteria which has the ability to consume energy in sunlight to produce chemical energy. There are 2 types of photosynthetic bacteria as oxygenic photosynthetic bacteria & anoxygenic photosynthetic bacteria. Oxygenic bacteria produce gaseous oxygen (O 2 ) as a side product of photosynthesis while anoxygenic bacteria don’t.

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Answer 1

Question

Chapter 23, Problem 1TY

Summary Introduction

Introduction:

Photosynthetic bacteria are the group of bacteria which has the ability to consume energy in sunlight to produce chemical energy. There are 2 types of photosynthetic bacteria as oxygenic photosynthetic bacteria & anoxygenic photosynthetic bacteria. Oxygenic bacteria produce gaseous oxygen (O₂) as a side product of photosynthesis while anoxygenic bacteria don’t.

Expert Solution & Answer

Answer to Problem 1TY

The correct answer is option (b) the cyanobacteria

Explanation of Solution

Explanation/justification for the correct answer:

Option (b) thecyanobacteria. Cyanobacteria are also type of phototropic bacteria. They can perform photosynthesis which is similar to the green plants in mechanism. Therefore cyanobacteria are the phylum of bacteria which produce oxygen gas as a result of photosynthesis. So this is the correct answer.

Explanation for incorrect answer:

Option (a) the proteobacteria. Proteobacteria is a sub group of gram-negative bacteria. They can perform photosynthesis with the bacteriochlorophylls a & b. But proteobacteria are a type of anoxygenic bacteria. Therefore option (a) is incorrect.

Option (c) the Gram-positive bacteria. Gram-positive bacteria also have some species that are photosynthetic. But they are also anoxygenic bacterial type.

Option (d) all of the above. As option (a) and (c) are incorrect, option (d) also incorrect.

Option (e) none of the above. As option (b) is correct this option is wrong.

Conclusion

The phylum of bacteria which produce oxygen gas as a result of photosynthesis is cyanobacteria. So the correct option is option (b).

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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

Question

Chapter 23, Problem 1TY

Summary Introduction

Introduction:

Photosynthetic bacteria are the group of bacteria which has the ability to consume energy in sunlight to produce chemical energy. There are 2 types of photosynthetic bacteria as oxygenic photosynthetic bacteria & anoxygenic photosynthetic bacteria. Oxygenic bacteria produce gaseous oxygen (O₂) as a side product of photosynthesis while anoxygenic bacteria don’t.

Expert Solution & Answer

Answer to Problem 1TY

The correct answer is option (b) the cyanobacteria

Explanation of Solution

Explanation/justification for the correct answer:

Option (b) thecyanobacteria. Cyanobacteria are also type of phototropic bacteria. They can perform photosynthesis which is similar to the green plants in mechanism. Therefore cyanobacteria are the phylum of bacteria which produce oxygen gas as a result of photosynthesis. So this is the correct answer.

Explanation for incorrect answer:

Option (a) the proteobacteria. Proteobacteria is a sub group of gram-negative bacteria. They can perform photosynthesis with the bacteriochlorophylls a & b. But proteobacteria are a type of anoxygenic bacteria. Therefore option (a) is incorrect.

Option (c) the Gram-positive bacteria. Gram-positive bacteria also have some species that are photosynthetic. But they are also anoxygenic bacterial type.

Option (d) all of the above. As option (a) and (c) are incorrect, option (d) also incorrect.

Option (e) none of the above. As option (b) is correct this option is wrong.

Conclusion

The phylum of bacteria which produce oxygen gas as a result of photosynthesis is cyanobacteria. So the correct option is option (b).

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Answer 3

Question

Chapter 23, Problem 1TY

Summary Introduction

Introduction:

Photosynthetic bacteria are the group of bacteria which has the ability to consume energy in sunlight to produce chemical energy. There are 2 types of photosynthetic bacteria as oxygenic photosynthetic bacteria & anoxygenic photosynthetic bacteria. Oxygenic bacteria produce gaseous oxygen (O₂) as a side product of photosynthesis while anoxygenic bacteria don’t.

Expert Solution & Answer

Answer to Problem 1TY

The correct answer is option (b) the cyanobacteria

Explanation of Solution

Explanation/justification for the correct answer:

Option (b) thecyanobacteria. Cyanobacteria are also type of phototropic bacteria. They can perform photosynthesis which is similar to the green plants in mechanism. Therefore cyanobacteria are the phylum of bacteria which produce oxygen gas as a result of photosynthesis. So this is the correct answer.

Explanation for incorrect answer:

Option (a) the proteobacteria. Proteobacteria is a sub group of gram-negative bacteria. They can perform photosynthesis with the bacteriochlorophylls a & b. But proteobacteria are a type of anoxygenic bacteria. Therefore option (a) is incorrect.

Option (c) the Gram-positive bacteria. Gram-positive bacteria also have some species that are photosynthetic. But they are also anoxygenic bacterial type.

Option (d) all of the above. As option (a) and (c) are incorrect, option (d) also incorrect.

Option (e) none of the above. As option (b) is correct this option is wrong.

Conclusion

The phylum of bacteria which produce oxygen gas as a result of photosynthesis is cyanobacteria. So the correct option is option (b).

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Answer 4

Question

Chapter 23, Problem 1TY

Summary Introduction

Introduction:

Photosynthetic bacteria are the group of bacteria which has the ability to consume energy in sunlight to produce chemical energy. There are 2 types of photosynthetic bacteria as oxygenic photosynthetic bacteria & anoxygenic photosynthetic bacteria. Oxygenic bacteria produce gaseous oxygen (O₂) as a side product of photosynthesis while anoxygenic bacteria don’t.

Expert Solution & Answer

Answer to Problem 1TY

The correct answer is option (b) the cyanobacteria

Explanation of Solution

Explanation/justification for the correct answer:

Option (b) thecyanobacteria. Cyanobacteria are also type of phototropic bacteria. They can perform photosynthesis which is similar to the green plants in mechanism. Therefore cyanobacteria are the phylum of bacteria which produce oxygen gas as a result of photosynthesis. So this is the correct answer.

Explanation for incorrect answer:

Option (a) the proteobacteria. Proteobacteria is a sub group of gram-negative bacteria. They can perform photosynthesis with the bacteriochlorophylls a & b. But proteobacteria are a type of anoxygenic bacteria. Therefore option (a) is incorrect.

Option (c) the Gram-positive bacteria. Gram-positive bacteria also have some species that are photosynthetic. But they are also anoxygenic bacterial type.

Option (d) all of the above. As option (a) and (c) are incorrect, option (d) also incorrect.

Option (e) none of the above. As option (b) is correct this option is wrong.

Conclusion

The phylum of bacteria which produce oxygen gas as a result of photosynthesis is cyanobacteria. So the correct option is option (b).

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Answer 5

Chapter 23, Problem 1TY

Summary Introduction

Introduction:

Photosynthetic bacteria are the group of bacteria which has the ability to consume energy in sunlight to produce chemical energy. There are 2 types of photosynthetic bacteria as oxygenic photosynthetic bacteria & anoxygenic photosynthetic bacteria. Oxygenic bacteria produce gaseous oxygen (O₂) as a side product of photosynthesis while anoxygenic bacteria don’t.

Expert Solution & Answer

Answer to Problem 1TY

The correct answer is option (b) the cyanobacteria

Explanation of Solution

Explanation/justification for the correct answer:

Option (b) thecyanobacteria. Cyanobacteria are also type of phototropic bacteria. They can perform photosynthesis which is similar to the green plants in mechanism. Therefore cyanobacteria are the phylum of bacteria which produce oxygen gas as a result of photosynthesis. So this is the correct answer.

Explanation for incorrect answer:

Option (a) the proteobacteria. Proteobacteria is a sub group of gram-negative bacteria. They can perform photosynthesis with the bacteriochlorophylls a & b. But proteobacteria are a type of anoxygenic bacteria. Therefore option (a) is incorrect.

Option (c) the Gram-positive bacteria. Gram-positive bacteria also have some species that are photosynthetic. But they are also anoxygenic bacterial type.

Option (d) all of the above. As option (a) and (c) are incorrect, option (d) also incorrect.

Option (e) none of the above. As option (b) is correct this option is wrong.

Conclusion

The phylum of bacteria which produce oxygen gas as a result of photosynthesis is cyanobacteria. So the correct option is option (b).

Answer 6

Chapter 23, Problem 1TY

Summary Introduction

Introduction:

Photosynthetic bacteria are the group of bacteria which has the ability to consume energy in sunlight to produce chemical energy. There are 2 types of photosynthetic bacteria as oxygenic photosynthetic bacteria & anoxygenic photosynthetic bacteria. Oxygenic bacteria produce gaseous oxygen (O₂) as a side product of photosynthesis while anoxygenic bacteria don’t.

Expert Solution & Answer

Answer to Problem 1TY

The correct answer is option (b) the cyanobacteria

Explanation of Solution

Explanation/justification for the correct answer:

Option (b) thecyanobacteria. Cyanobacteria are also type of phototropic bacteria. They can perform photosynthesis which is similar to the green plants in mechanism. Therefore cyanobacteria are the phylum of bacteria which produce oxygen gas as a result of photosynthesis. So this is the correct answer.

Explanation for incorrect answer:

Option (a) the proteobacteria. Proteobacteria is a sub group of gram-negative bacteria. They can perform photosynthesis with the bacteriochlorophylls a & b. But proteobacteria are a type of anoxygenic bacteria. Therefore option (a) is incorrect.

Option (c) the Gram-positive bacteria. Gram-positive bacteria also have some species that are photosynthetic. But they are also anoxygenic bacterial type.

Option (d) all of the above. As option (a) and (c) are incorrect, option (d) also incorrect.

Option (e) none of the above. As option (b) is correct this option is wrong.

Conclusion

The phylum of bacteria which produce oxygen gas as a result of photosynthesis is cyanobacteria. So the correct option is option (b).

Answer 7

Chapter 23, Problem 1TY

Summary Introduction

Introduction:

Photosynthetic bacteria are the group of bacteria which has the ability to consume energy in sunlight to produce chemical energy. There are 2 types of photosynthetic bacteria as oxygenic photosynthetic bacteria & anoxygenic photosynthetic bacteria. Oxygenic bacteria produce gaseous oxygen (O₂) as a side product of photosynthesis while anoxygenic bacteria don’t.

Answer 8

Expert Solution & Answer

Answer to Problem 1TY

The correct answer is option (b) the cyanobacteria

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Explanation/justification for the correct answer:

Option (b) thecyanobacteria. Cyanobacteria are also type of phototropic bacteria. They can perform photosynthesis which is similar to the green plants in mechanism. Therefore cyanobacteria are the phylum of bacteria which produce oxygen gas as a result of photosynthesis. So this is the correct answer.

Explanation for incorrect answer:

Option (a) the proteobacteria. Proteobacteria is a sub group of gram-negative bacteria. They can perform photosynthesis with the bacteriochlorophylls a & b. But proteobacteria are a type of anoxygenic bacteria. Therefore option (a) is incorrect.

Option (c) the Gram-positive bacteria. Gram-positive bacteria also have some species that are photosynthetic. But they are also anoxygenic bacterial type.

Option (d) all of the above. As option (a) and (c) are incorrect, option (d) also incorrect.

Option (e) none of the above. As option (b) is correct this option is wrong.