10th Class Biology Chapter 15 MCQs with Answers

AdminApril 3, 2024

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Welcome to the 10th Class Biology Chapter 15 MCQs Practice and Quiz Tests. We are presenting you with top MCQ questions from the 10th Class Biology Chapter 15 Inheritance.

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10th Class Multiple Choice Question Chapter 15 with Answers Free PDF

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Grade 10 Biology Chapter 15 Online Quiz

By presenting 3 options to choose from, 10th Class Biology Chapter 15 Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of 10th Class Questions and Answers and click over the correct answer.

Test Name: 10th Class Biology Chapter 15 Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure high marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply comment below this post, so that we can update the answer in the quiz section.

10th Class Biology Ch 15: Inheritance

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1 / 40

What is the term for the physical expression of a gene in an organism?

Genotype

Homozygote

Phenotype

2 / 40

What is the name for a gene that is always expressed, regardless of the presence of another allele?

Recessive

Dominant

Codominant

3 / 40

What is the probability of having a child with a dominant genetic disorder if one parent is affected and the other is unaffected (heterozygous)?

0.25

0.5

0.75

4 / 40

What is the probability of having a child with a dominant genetic disorder if both parents are affected (homozygous)?

0.5

0.25

5 / 40

What is the probability of having a child with a recessive genetic disorder if both parents are carriers (heterozygous)?

0.25

0.5

0.75

6 / 40

What is the term for an individual who carries one copy of a recessive allele for a genetic disorder but does not express the trait?

Homozygote

Carrier

Dominant

7 / 40

In a Punnett square, what represents the possible gametes produced by each parent?

Rows and columns

Intersections

Diagonals

8 / 40

What is the term for the situation in which a single gene influences multiple traits?

Polygenic inheritance

Pleiotropy

Epistasis

9 / 40

In codominance, what is the result when two different alleles for a gene are both expressed in the heterozygous condition?

A blending of traits

One trait dominates the other

Both traits are fully expressed

10 / 40

In a test cross, what is the purpose of crossing an individual with an unknown genotype with a homozygous recessive individual?

To study the effects of a specific trait

To determine the genotype of the unknown individual

To produce offspring with a dominant phenotype

11 / 40

In a Punnett square, what represents the possible genotypes produced by the union of gametes?

Intersections

Diagonals

Rows and columns

12 / 40

Which chromosome carries genes unrelated to an individual's sex?

Homologous chromosome

Sex chromosome

Autosome

13 / 40

What is the term for a trait determined by more than one gene?

Polygenic

Monogenic

Epistatic

14 / 40

Which inheritance pattern involves the expression of both alleles in the heterozygous condition?

Multiple alleles

Codominance

Incomplete dominance

15 / 40

Which inheritance pattern involves the blending of traits, resulting in an intermediate phenotype in heterozygous individuals?

Multiple alleles

Codominance

Incomplete dominance

16 / 40

Which genetic disorder is characterized by the absence of an enzyme needed to break down lipids, leading to the accumulation of fatty substances in the brain?

Cystic fibrosis

Tay-Sachs disease

Huntington's disease

17 / 40

What is the term for the genetic makeup of an organism, including both expressed and unexpressed alleles?

Homozygote

Phenotype

Genotype

18 / 40

What is the term for alternative forms of a gene that occupy the same position on homologous chromosomes?

Loci

Phenotypes

Alleles

19 / 40

Which genetic disorder is caused by the absence of an enzyme needed to break down phenylalanine?

Phenylketonuria (PKU)

Cystic fibrosis

Huntington's disease

20 / 40

In Mendel's experiments, what is the term for a trait that is masked or hidden in the F1 generation but reappears in the F2 generation?

Recessive

Codominant

Dominant

21 / 40

What is the term for the physical appearance of an organism's traits?

Genotype

Homozygote

Phenotype

22 / 40

What is the expected phenotypic ratio in the F2 generation of a dihybrid cross between two heterozygous individuals?

0.04306712962963

9:3:3:1

0.12569444444444

23 / 40

What is the term for the genetic makeup of an organism for a particular trait?

Homozygote

Genotype

Phenotype

24 / 40

Which chromosome determines the sex of an individual in humans?

Homologous chromosome

Sex chromosome

Autosome

25 / 40

What is the term for a trait determined by genes located on the sex chromosomes?

Autosomal trait

Recessive trait

Sex-linked trait

26 / 40

Which law states that pairs of alleles segregate independently during the formation of gametes?

Law of Segregation

Law of Independent Assortment

Law of Dominance

27 / 40

Which scientist discovered the principle of genetic linkage by studying fruit flies?

Rosalind Franklin

Alfred Hershey

Thomas Hunt Morgan

28 / 40

Which law states that each pair of alleles segregates independently of other pairs during gamete formation?

Law of Independent Assortment

Law of Dominance

Law of Segregation

29 / 40

What is the term for a trait that is influenced by both genes and the environment?

Multifactorial

Autosomal

Polygenic

30 / 40

Which genetic disorder results from the inability to produce melanin, leading to a lack of pigmentation in the skin, hair, and eyes?

Tay-Sachs disease

Albinism

Hemophilia

31 / 40

Which scientist is known as the "father of modern genetics" for his work on the inheritance of traits in pea plants?

Thomas Hunt Morgan

Charles Darwin

Gregor Mendel

32 / 40

In humans, what is the sex chromosome complement of a female?

XXY

33 / 40

In humans, what is the sex chromosome complement of a male?

34 / 40

In a dihybrid cross, how many different combinations of alleles can be produced in the gametes of the parents?

35 / 40

What is the term for the specific location of a gene on a chromosome?

Homologous region

Allele

Locus

36 / 40

Which scientist proposed the theory of inheritance through the transmission of acquired characteristics?

Alfred Wallace

Charles Darwin

Jean-Baptiste Lamarck

37 / 40

In a monohybrid cross, what is the expected phenotypic ratio of the F2 generation if both parents are heterozygous?

0.04306712962963

0.042361111111111

0.12569444444444

38 / 40

What is the term for a genetic cross involving individuals with two different traits?

Dihybrid cross

Trihybrid cross

Monohybrid cross

39 / 40

What is the term for an organism that has two identical alleles for a particular gene?

Homologous

Heterozygous

Homozygous

40 / 40

What is the term for the physical or chemical agents that can cause mutations in DNA?

Mutagens

Loci

Alleles

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AdminApril 3, 2024

0 10 1 minute read