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Genetics MCQs with Answers

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

Genetics is the branch of biology that studies genes, heredity, and genetic variation in organisms. It is fundamental to understanding how traits and characteristics are passed from one generation to the next. At the core of genetics is the concept of genes, which are segments of DNA that encode information for building proteins and regulating various biological processes.

The study of genetics involves several key areas, including molecular genetics, which explores the structure and function of genes at the molecular level, and Mendelian genetics, which examines how traits are inherited according to Gregor Mendel’s principles of inheritance. Advances in genetic research have led to the development of techniques such as DNA sequencing and genetic mapping, which provide detailed insights into genetic variations and their impact on health and disease.

Genetics plays a crucial role in fields such as medicine, where it aids in diagnosing genetic disorders, predicting disease risk, and developing personalized treatments. Genetic testing and counseling help individuals understand their genetic predispositions and make informed decisions about their health.

In agriculture, genetics is applied to improve crop yields and resistance to pests and diseases through plant breeding and genetic modification. Additionally, evolutionary genetics provides insights into the evolutionary history and relationships among species.

Overall, genetics is a dynamic and rapidly advancing field that continues to drive discoveries and innovations across various domains of science and medicine

Genetics Online Quiz

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

  • Test Name: Genetics 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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Genetics MCQs

Genetics

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1 / 40

Which genetic disorder is characterized by the inability to produce melanin pigment?

2 / 40

What is the term for the study of how genes are inherited and expressed?

3 / 40

What term refers to a change in the nucleotide sequence of DNA that may or may not alter the function of a gene?

4 / 40

What is the term for a segment of DNA that codes for a specific trait?

5 / 40

What is the genotype of a homozygous recessive individual for a particular trait?

6 / 40

How many alleles does a diploid organism inherit for each gene?

7 / 40

In humans, what is the sex genotype for a male?

8 / 40

What is the term for the observable traits of an organism, determined by both genetic and environmental factors?

9 / 40

What term describes the presence of more than two alleles for a genetic trait within a population?

10 / 40

Which term describes an individual with two different alleles for a particular gene?

11 / 40

Which genetic disorder is caused by a trisomy of chromosome 21?

12 / 40

What type of inheritance pattern is observed when both alleles contribute equally and fully to the phenotype?

13 / 40

In humans, what is the sex genotype for a female?

14 / 40

What is the term for alternative forms of a gene that arise by mutation and are found at the same locus on homologous chromosomes?

15 / 40

What is the basic unit of heredity?

16 / 40

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

17 / 40

What genetic disorder results from a mutation where individuals have an extra X chromosome (XXY)?

18 / 40

What is the term for the specific genetic makeup of an individual, usually with reference to a particular characteristic under consideration?

19 / 40

What is the term for the mating of two individuals that differ at one genetic locus?

20 / 40

What is the term for the probability that an individual will develop a particular trait or disorder?

21 / 40

What term describes the inheritance pattern where multiple genes influence the phenotype of a trait?

22 / 40

What type of inheritance pattern results in the blending of traits from the parental generation to produce intermediate phenotypes in the offspring?

23 / 40

What is the term for the alleles an individual has for a particular trait?

24 / 40

In Mendel's experiments, what is the term used for the offspring resulting from a cross between two true-breeding individuals?

25 / 40

What is the term for an individual who has two identical alleles for a particular gene?

26 / 40

What is the term for a diagram that shows the probable distribution of alleles in offspring from a genetic cross?

27 / 40

What genetic disorder results from the inheritance of a mutated allele on the X chromosome, leading to progressive muscle degeneration?

28 / 40

What is the sex-determining chromosome pair in humans?

29 / 40

What is the likelihood that a child will inherit a recessive disorder from two carrier parents (Aa x Aa)?

30 / 40

What is the likelihood that two carriers (Aa) of a recessive genetic disorder will have an affected child (aa)?

31 / 40

In a monohybrid cross between two heterozygous individuals (Aa x Aa), what is the probability of producing an offspring with the homozygous recessive genotype?

32 / 40

What is the probability of crossing two heterozygous individuals (Aa x Aa) and producing offspring with the homozygous recessive genotype?

33 / 40

What term refers to the study of the inheritance of traits controlled by a single gene?

34 / 40

Which term refers to the physical appearance of an organism?

35 / 40

Which law states that alleles of different genes assort independently during gamete formation?

36 / 40

What is the term for the allele that is expressed in a heterozygous individual?

37 / 40

Which law states that alleles segregate independently of each other during gamete formation, such that each gamete has an equal probability of receiving either allele?

38 / 40

In a dihybrid cross (AaBb x AaBb), what is the phenotypic ratio of the offspring?

39 / 40

What is the term for the condition in which one gene influences multiple traits?

40 / 40

What is the probability of producing an offspring with the dominant phenotype in a cross between a heterozygous dominant parent (Aa) and a homozygous recessive parent (aa)?

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