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

Question

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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.

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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.

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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.

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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.

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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:

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.