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Inheritance MCQs with Answers

Welcome to the Inheritance MCQs with Answers. In this post, we have shared Inheritance Online Test for different competitive exams. Find practice Inheritance Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Inheritance.

Generally speaking, inheritance refers to the concept based on genetics and describes how traits and characteristics are passed on from parents to offspring. Regulation takes place at the level of the transmission of information encoded in the DNA, arranged in genes, and passed down through specific patterns which determines most physical and biological traits.

The study is primarily on Mendelian genetics, which was discovered based on the first explanation brought by Gregor Mendel. According to Mendel’s laws, traits are passed based on dominant and recessive alleles. Dominant alleles cover up the expression of the recessive alleles, and the set of alleles in an organism’s genotype leads to the creation of its phenotype.

There are a few different types of inheritance patterns. These include autosomal dominant, autosomal recessive, and X-linked. Autosomal dominant is one copy of the dominant allele enough for expression, while autosomal recessive traits require two copies of the recessive allele in order to manifest. Lastly, X-linked is any gene located on the X chromosome: expression in individuals and sex affected.

It is very recent discoveries in genetics that break us out from the world of Mendelian patterns of inheritance and include concepts of incomplete dominance, codominance, and polygenic traits. So this breaks down complex genetic inheritance and roles in health, development, and evolution in different ways.

Inheritance Online Quiz

By presenting 3 options to choose from, Inheritance 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 Inheritance Questions and Answers and click over the correct answer.

  • Test Name: Inheritance MCQ 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 click on question and comment below that question. so that we can update the answer in the quiz section.

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Inheritance MCQs

Inheritance

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1 / 40

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

2 / 40

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

3 / 40

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

4 / 40

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

5 / 40

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

6 / 40

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

7 / 40

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

8 / 40

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

9 / 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?

10 / 40

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

11 / 40

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

12 / 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?

13 / 40

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

14 / 40

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

15 / 40

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

16 / 40

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

17 / 40

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

18 / 40

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

19 / 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)?

20 / 40

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

21 / 40

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

22 / 40

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

23 / 40

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

24 / 40

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

25 / 40

Which chromosome determines the sex of an individual in humans?

26 / 40

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

27 / 40

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

28 / 40

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

29 / 40

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

30 / 40

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

31 / 40

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

32 / 40

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

33 / 40

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

34 / 40

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

35 / 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?

36 / 40

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

37 / 40

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

38 / 40

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

39 / 40

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

40 / 40

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

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