Explore topic-wise MCQs in Biology.

This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

If the F1 generation produced by a cross between axial and terminal flower-bearing plants produces only axial flowers, the F2 progeny produced by the self-crossing of F1 will also produce only axial flowers.

A. True
B. False
Answer» C.
2.

What kind of a process is the segregation of alleles during meiosis?

A. Uniform
B. Gaussian
C. Stochastic
D. Poisson
Answer» D. Poisson
3.

What is the cross between VV and vv called?

A. Monohybrid cross
B. Dihybrid cross
C. Monogamous cross
D. Digamous cross
Answer» B. Dihybrid cross
4.

The factor expressed only in homozygous state is called _________

A. dominant
B. recessive
C. gene
D. allele
Answer» C. gene
5.

VV, Vv and vv are _______, while violet and white are _________

A. genotypes, phenotypes
B. phenotypes, genotypes
C. genotypes, genotypes
D. phenotypes, phenotypes
Answer» B. phenotypes, genotypes
6.

Which zygosity has the same allelic pair of genes?

A. Homozygosity
B. Heterozygosity
C. Hemizygosity
D. Nullizygosity
Answer» B. Heterozygosity
7.

To represent a genotype, the dominant allele is represented by a capital letter and the recessive allele by a small letter.

A. True
B. False
Answer» B. False
8.

What are the copies of genes that code for different phenotypes called?

A. Alleles
B. Gametes
C. Chromatin
D. DNA
Answer» B. Gametes
9.

What exactly are Mendel s factors?

A. Genes
B. Proteins
C. Chromosomes
D. RNA
Answer» B. Proteins
10.

Based on his experiments on pea plants, what were the things that he suspected of being transferred across generations?

A. Genes
B. Factors
C. Chromosomes
D. DNA
Answer» C. Chromosomes
11.

Which of the following was not observed in F2 progeny of true-breeding tall and dwarf plants?

A. Homozygous tall plants
B. Heterozygous tall plants
C. Homozygous dwarf plants
D. Heterozygous dwarf plants
Answer» E.
12.

In Mendelian crosses, the F2 progeny exhibits a recessive phenotype and a blended phenotype.

A. True
B. False
Answer» C.
13.

What are the possible phenotypes that can be observed after self-crossing violet flowered pea plants?

A. All violet
B. All white
C. 25% violet and 75% white
D. 25% white and 75% violet
Answer» E.
14.

Self-pollination of F1 progeny will result in a new filial generation called _______

A. F1
B. F0
C. F2
D. F1.1
Answer» D. F1.1