What is the smallest unit of heredity? a. chromosome b. gene c. codon d. nucleotide

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

Chapter 9, Problem 1MCQ

What is the smallest unit of heredity?

a. chromosome
b. gene
c. codon
d. nucleotide

Expert Solution & Answer

Summary Introduction

Introduction:

Heredity is defined as the transfer of genetic material from parents to offspring. DNA is the genetic material that carries all the information needed for growth, development, reproduction of organisms.

Answer to Problem 1MCQ

Correct answer:

Gene is the smallest unit of heredity. Therefore, option (b) is correct.

Option (b) is given as “gene”.

Explanation of Solution

Justify reason for the correct statement:

Genes are the smallest and basic unit of heredity as they carry genetic information which is required for growth, development, and reproduction of organisms. The hereditary characters pass from one generation to another generation through the genes. Gene codes for specific proteins that form phenotypic characteristics of organisms.

Hence, option (b) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “chromosome”.

Chromosome is a thread-like structure found in the nucleus of cell that contains genetic material. Hence, it is a wrong answer.

Option (c) is given as “codon”.

Codon is a nucleotide sequence of either DNA or RNA that codes for specific amino acid and it arranged in triplets. Hence, it is a wrong answer.

Option (d) is given as “nucleotide”.

A nucleotide sequence consists of 5-carbon sugar, one phosphate group, and nitrogenous bases and it serves as a building block of nucleic acid. Hence, it is a wrong answer.

Hence, options (a), (c) and (d) are incorrect.

Conclusion

A gene is the smallest unit of heredity as it carries all genetic information that may transfer from one generation to another.

Want to see more full solutions like this?

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

Students have asked these similar questions

(A) 25 20 20 15 NPP (Mg C/ha/yr) 10 10 5 0 0 2,000 4,000 6,000 ECOLOGY 4e, Figure 20.11 (Part 1) 2017 Sinauer Associates, Inc. Average annual precipitation (mm) 8,000

explain the cascade of events (starting with relaxing trade winds) that occurs during El Niño in the eastern Pacific (off the coasts of California/North America and Peru/South America) and which lead to food-chain collapse - start with changes in the physical/oceanographic conditions, andthen systematically describe the cascading effects at each level of the food chain -

3) Which statement(s) about the Pacific Decadal Oscillation (PDO) is/are TRUE? CIRCLE ALL THAT APPLY. A. It is a major driver of salmon populations in the Pacific B. It affects sea surface temperatures in the eastern Pacific C. Its cycles typically do not last as long as those of ENSO D. Evidence that it has occurred over many centuries has been gathered from tree ring data

Answer 2

Textbook Question

Chapter 9, Problem 1MCQ

What is the smallest unit of heredity?

a. chromosome
b. gene
c. codon
d. nucleotide

Expert Solution & Answer

Summary Introduction

Introduction:

Heredity is defined as the transfer of genetic material from parents to offspring. DNA is the genetic material that carries all the information needed for growth, development, reproduction of organisms.

Answer to Problem 1MCQ

Correct answer:

Gene is the smallest unit of heredity. Therefore, option (b) is correct.

Option (b) is given as “gene”.

Explanation of Solution

Justify reason for the correct statement:

Genes are the smallest and basic unit of heredity as they carry genetic information which is required for growth, development, and reproduction of organisms. The hereditary characters pass from one generation to another generation through the genes. Gene codes for specific proteins that form phenotypic characteristics of organisms.

Hence, option (b) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “chromosome”.

Chromosome is a thread-like structure found in the nucleus of cell that contains genetic material. Hence, it is a wrong answer.

Option (c) is given as “codon”.

Codon is a nucleotide sequence of either DNA or RNA that codes for specific amino acid and it arranged in triplets. Hence, it is a wrong answer.

Option (d) is given as “nucleotide”.

A nucleotide sequence consists of 5-carbon sugar, one phosphate group, and nitrogenous bases and it serves as a building block of nucleic acid. Hence, it is a wrong answer.

Hence, options (a), (c) and (d) are incorrect.

Conclusion

A gene is the smallest unit of heredity as it carries all genetic information that may transfer from one generation to another.

Want to see more full solutions like this?

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

Answer 3

Textbook Question

Chapter 9, Problem 1MCQ

What is the smallest unit of heredity?

a. chromosome
b. gene
c. codon
d. nucleotide

Expert Solution & Answer

Summary Introduction

Introduction:

Heredity is defined as the transfer of genetic material from parents to offspring. DNA is the genetic material that carries all the information needed for growth, development, reproduction of organisms.

Answer to Problem 1MCQ

Correct answer:

Gene is the smallest unit of heredity. Therefore, option (b) is correct.

Option (b) is given as “gene”.

Explanation of Solution

Justify reason for the correct statement:

Genes are the smallest and basic unit of heredity as they carry genetic information which is required for growth, development, and reproduction of organisms. The hereditary characters pass from one generation to another generation through the genes. Gene codes for specific proteins that form phenotypic characteristics of organisms.

Hence, option (b) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “chromosome”.

Chromosome is a thread-like structure found in the nucleus of cell that contains genetic material. Hence, it is a wrong answer.

Option (c) is given as “codon”.

Codon is a nucleotide sequence of either DNA or RNA that codes for specific amino acid and it arranged in triplets. Hence, it is a wrong answer.

Option (d) is given as “nucleotide”.

A nucleotide sequence consists of 5-carbon sugar, one phosphate group, and nitrogenous bases and it serves as a building block of nucleic acid. Hence, it is a wrong answer.

Hence, options (a), (c) and (d) are incorrect.

Conclusion

A gene is the smallest unit of heredity as it carries all genetic information that may transfer from one generation to another.

Want to see more full solutions like this?

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

Answer 4

Textbook Question

Chapter 9, Problem 1MCQ

What is the smallest unit of heredity?

a. chromosome
b. gene
c. codon
d. nucleotide

Expert Solution & Answer

Summary Introduction

Introduction:

Heredity is defined as the transfer of genetic material from parents to offspring. DNA is the genetic material that carries all the information needed for growth, development, reproduction of organisms.

Answer to Problem 1MCQ

Correct answer:

Gene is the smallest unit of heredity. Therefore, option (b) is correct.

Option (b) is given as “gene”.

Explanation of Solution

Justify reason for the correct statement:

Genes are the smallest and basic unit of heredity as they carry genetic information which is required for growth, development, and reproduction of organisms. The hereditary characters pass from one generation to another generation through the genes. Gene codes for specific proteins that form phenotypic characteristics of organisms.

Hence, option (b) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “chromosome”.

Chromosome is a thread-like structure found in the nucleus of cell that contains genetic material. Hence, it is a wrong answer.

Option (c) is given as “codon”.

Codon is a nucleotide sequence of either DNA or RNA that codes for specific amino acid and it arranged in triplets. Hence, it is a wrong answer.

Option (d) is given as “nucleotide”.

A nucleotide sequence consists of 5-carbon sugar, one phosphate group, and nitrogenous bases and it serves as a building block of nucleic acid. Hence, it is a wrong answer.

Hence, options (a), (c) and (d) are incorrect.

Conclusion

A gene is the smallest unit of heredity as it carries all genetic information that may transfer from one generation to another.

Want to see more full solutions like this?

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:

Heredity is defined as the transfer of genetic material from parents to offspring. DNA is the genetic material that carries all the information needed for growth, development, reproduction of organisms.

Answer to Problem 1MCQ

Correct answer:

Gene is the smallest unit of heredity. Therefore, option (b) is correct.

Option (b) is given as “gene”.

Explanation of Solution

Justify reason for the correct statement:

Genes are the smallest and basic unit of heredity as they carry genetic information which is required for growth, development, and reproduction of organisms. The hereditary characters pass from one generation to another generation through the genes. Gene codes for specific proteins that form phenotypic characteristics of organisms.

Hence, option (b) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “chromosome”.

Chromosome is a thread-like structure found in the nucleus of cell that contains genetic material. Hence, it is a wrong answer.

Option (c) is given as “codon”.

Codon is a nucleotide sequence of either DNA or RNA that codes for specific amino acid and it arranged in triplets. Hence, it is a wrong answer.

Option (d) is given as “nucleotide”.

A nucleotide sequence consists of 5-carbon sugar, one phosphate group, and nitrogenous bases and it serves as a building block of nucleic acid. Hence, it is a wrong answer.

Hence, options (a), (c) and (d) are incorrect.

Conclusion

A gene is the smallest unit of heredity as it carries all genetic information that may transfer from one generation to another.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

Heredity is defined as the transfer of genetic material from parents to offspring. DNA is the genetic material that carries all the information needed for growth, development, reproduction of organisms.

Answer to Problem 1MCQ

Correct answer:

Gene is the smallest unit of heredity. Therefore, option (b) is correct.

Option (b) is given as “gene”.

Explanation of Solution

Justify reason for the correct statement:

Genes are the smallest and basic unit of heredity as they carry genetic information which is required for growth, development, and reproduction of organisms. The hereditary characters pass from one generation to another generation through the genes. Gene codes for specific proteins that form phenotypic characteristics of organisms.

Hence, option (b) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “chromosome”.

Chromosome is a thread-like structure found in the nucleus of cell that contains genetic material. Hence, it is a wrong answer.

Option (c) is given as “codon”.

Codon is a nucleotide sequence of either DNA or RNA that codes for specific amino acid and it arranged in triplets. Hence, it is a wrong answer.

Option (d) is given as “nucleotide”.

A nucleotide sequence consists of 5-carbon sugar, one phosphate group, and nitrogenous bases and it serves as a building block of nucleic acid. Hence, it is a wrong answer.

Hence, options (a), (c) and (d) are incorrect.

Conclusion

A gene is the smallest unit of heredity as it carries all genetic information that may transfer from one generation to another.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

Heredity is defined as the transfer of genetic material from parents to offspring. DNA is the genetic material that carries all the information needed for growth, development, reproduction of organisms.

Answer 12

Answer to Problem 1MCQ

Correct answer:

Gene is the smallest unit of heredity. Therefore, option (b) is correct.

Option (b) is given as “gene”.

Answer 13

Explanation of Solution

Justify reason for the correct statement:

Genes are the smallest and basic unit of heredity as they carry genetic information which is required for growth, development, and reproduction of organisms. The hereditary characters pass from one generation to another generation through the genes. Gene codes for specific proteins that form phenotypic characteristics of organisms.

Hence, option (b) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “chromosome”.

Chromosome is a thread-like structure found in the nucleus of cell that contains genetic material. Hence, it is a wrong answer.

Option (c) is given as “codon”.

Codon is a nucleotide sequence of either DNA or RNA that codes for specific amino acid and it arranged in triplets. Hence, it is a wrong answer.

Option (d) is given as “nucleotide”.

A nucleotide sequence consists of 5-carbon sugar, one phosphate group, and nitrogenous bases and it serves as a building block of nucleic acid. Hence, it is a wrong answer.

Hence, options (a), (c) and (d) are incorrect.