12th Class Biology Chapter 22 MCQs with Answers

AdminApril 5, 2024

0 4 1 minute read

Welcome to the 12th Class Biology Chapter 22 MCQs Practice and Quiz Tests. We are presenting you with top MCQ questions from the 12th Class Biology Chapter 22 Variation and Genetics.

You can find all the 12th Class Biology Chapter 22 MCQs online tests on our website. These online tests are great for learning and as well as for scoring maximum marks in your Intermediate Exams. We are making these Class 12 Biology MCQs online tests for those who want full marks in their exams.

12th Class Multiple Choice Question Chapter 22 with Answers Free PDF

You can also download 12th Class Biology Questions with Answers Chapter 22 free PDF from the link provided below. To Download file in PDF click on the arrow sign at the top right corner.

Grade 12 Biology Chapter 22 Online Quiz

By presenting 3 options to choose from, 12th Class Biology Chapter 22 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 12th Class Questions and Answers and click over the correct answer.

Test Name: 12th Class Biology Chapter 22 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.

12th Class Biology Chapter 22: Variation and Genetics

Please fill out the form before starting Quiz.

1 / 40

What is the term for an allele that is masked when a dominant allele is present?

Homozygous

Dominant

Recessive

2 / 40

What is the term for a trait controlled by a single gene with two alleles?

Monogenic

Homozygous

Polygenic

3 / 40

In a Punnett square, what represents the possible genotypes of offspring from a genetic cross?

Boxes

Letters

Symbols

4 / 40

What is the term for a trait that is influenced by multiple genes?

Homozygous

Polygenic

Monogenic

5 / 40

What is the term for the specific combination of alleles an organism has for a particular trait?

Phenotype

Allele

Genotype

6 / 40

In genetics, what does the term "homozygous" mean?

Having two identical alleles for a particular gene

Having two different alleles for a particular gene

Having no alleles for a particular gene

7 / 40

What is the term for the allele that is always expressed, masking the effect of the recessive allele?

Heterozygous

Dominant

Recessive

8 / 40

What is the term for the inheritance pattern where neither allele is dominant over the other?

Incomplete dominance

Complete dominance

Codominance

9 / 40

What is the term for the alleles an organism carries for a particular trait?

Genotype

Phenotype

Allele

10 / 40

What is the term for the study of the inheritance of traits?

Genetics

Evolution

Ecology

11 / 40

Which type of cell division produces gametes?

Meiosis

Binary fission

Mitosis

12 / 40

How many copies of each gene does a diploid organism typically have?

One

Three

Two

13 / 40

What is the term for the observable physical or biochemical characteristics of an organism?

Phenotype

Allele

Genotype

14 / 40

Which term describes the genetic makeup of an organism for a particular trait?

Allele

Phenotype

Genotype

15 / 40

What is the term for the observable physical or biochemical characteristics of an organism?

Allele

Phenotype

Genotype

16 / 40

What is the term for the genetic makeup of an individual?

Allele

Phenotype

Genotype

17 / 40

What is the term for the physical expression of a gene?

Phenotype

Genotype

Allele

18 / 40

What is the term for a breeding experiment involving the crossing of individuals with different genotypes?

Monohybrid cross

Dihybrid cross

Genetic cross

19 / 40

What is the term for a trait that is influenced by the environment as well as genetics?

Multifactorial

Monogenic

Polygenic

20 / 40

In Mendel's experiments, what did he call the offspring resulting from a cross between parents that are homozygous for different traits?

Hybrids

Purebreds

Mutants

21 / 40

What is the term for the process by which DNA is copied to produce new cells?

Transcription

Replication

Translation

22 / 40

Which term describes the genetic makeup of an organism?

Allele

Genotype

Phenotype

23 / 40

What is the term for a trait that is expressed when two different alleles are present?

Dominance

Incomplete dominance

Codominance

24 / 40

What is the term for the different forms of a gene?

Genotype

Allele

Chromosome

25 / 40

What is the term for a situation where both alleles of a gene are fully expressed, resulting in a phenotype that is a blend of the two?

Codominance

Complete dominance

Incomplete dominance

26 / 40

What is the term for the mating of two organisms with different phenotypes for a particular trait?

Hybridization

Inbreeding

Crossbreeding

27 / 40

What is the term for the genetic makeup of an organism?

Genotype

Allele

Phenotype

28 / 40

What is the term for a specific form of a gene?

Allele

Genotype

Chromosome

29 / 40

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

Allele

Genotype

Locus

30 / 40

What is the term for the study of the inheritance of traits?

Ecology

Genetics

Evolution

31 / 40

What is the term for the trait that is expressed in the heterozygous condition?

Recessive

Homozygous

Dominant

32 / 40

What is the term for the alleles an organism carries for a particular trait?

Phenotype

Genotype

Allele

33 / 40

What is the term for a diagram used to predict the outcome of a genetic cross?

Karyotype

Punnett square

Pedigree

34 / 40

What term describes the physical characteristics of an organism?

Genotype

Allele

Phenotype

35 / 40

What is the basic unit of heredity?

Allele

Gene

Chromosome

36 / 40

What is the term for a trait controlled by multiple genes?

Monogenic

Polygenic

Homozygous

37 / 40

In humans, what determines the sex of offspring?

Autosomal chromosomes

Sex chromosomes

Dominant alleles

38 / 40

What is the term for the process by which DNA is copied to produce new cells?

Translation

Replication

Transcription

39 / 40

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

Heterozygous

Homozygous

Dominant

40 / 40

What is the term for a group of genes that are inherited together?

Phenotype group

Allele group

Linkage group

Download Certificate of Quiz 12th Class Biology Chapter 22

On the end of Quiz, you can download the certificate of the quiz, if you got more than 70% marks. Add a certificate to your job application or social profile (like LinkedIn).

AdminApril 5, 2024

0 4 1 minute read