NEET BIOLOGY ONLINE FREE TEST 1

Botany - Classical Genetics

25 MCQ Test

Q1. Extra nuclear inheritance is a consequence of presence of genes in

A. Mitochondria and chloroplasts
B. Endoplasmic reticulum and mitochondria
C. Ribosomes and chloroplast
D. Lysosomes and ribosomes

Q2. To determine gametes of AaBb, it should be test crossed with

A. aaBB
B. AaBB
C. AABB
D. aabb

Q3. Gametes produced by AABbCC

A. Three
B. Four
C. Nine
D. Two

Q4. Example of polygenic inheritance

A. Flower colour in Mirabilis
B. Male honey bee
C. Pod shape in pea
D. Skin colour in humans

Q5. Test cross involves

A. Two recessive parents
B. Two F1 hybrids
C. F1 hybrid × double recessive
D. Two dominant parents

Q6. Yellow heterozygous × green seeds ratio

A. 9:1
B. 1:3
C. 3:1
D. 1:1

Q7. Dominant phenotype genotype is identified by

A. Back cross
B. Test cross
C. Dihybrid cross
D. Pedigree

Q8. F1 resembles both parents in

A. Incomplete dominance
B. Law of dominance
C. Inheritance of one gene
D. Codominance

Q9. Fruit colour in squash is

A. Recessive epistasis
B. Dominant epistasis
C. Complementary genes
D. Inhibitory genes

Q10. Mendel did not use

A. Flower position
B. Seed colour
C. Pod length
D. Seed shape

Q11. More parental than recombinant offspring indicates

A. Different chromosomes
B. Non-disjunction
C. Linked genes
D. Polygenic traits

Q12. Genes for seven pea traits are on

A. 7 chromosomes
B. 6 chromosomes
C. 5 chromosomes
D. 4 chromosomes

Q13. Law explaining new trait combinations

A. Segregation
B. Chromosome theory
C. Independent assortment
D. Polygenic inheritance

Q14. 'Gametes are never hybrid' refers to

A. Dominance
B. Independent assortment
C. Segregation
D. Random fertilization

Q15. Gene suppressing another at different locus

A. Epistatic
B. Supplementary
C. Hypostatic
D. Codominant

Q16. Dominant epistasis ratio

A. 9:3:3:1
B. 12:3:1
C. 9:3:4
D. 9:6:1

Q17. Mendel's experiments were during

A. 1856-1863
B. 1850-1870
C. 1857-1869
D. 1870-1877

Q18. 'Genetics' term introduced by

A. Gregor Mendel
B. Bateson
C. Hugo de Vries
D. Carl Correns

Q19. Allele means

A. Another word for gene
B. Alternate form of a gene
C. Morphological expression
D. Genetic makeup

Q20. Characters studied by Mendel

A. 3
B. 5
C. 7
D. 9

Q21. Mendel's work rediscovered by

A. Hugo de Vries
B. Tschermak
C. Carl Correns
D. All of the above

Q22. Phenotypic ratio in incomplete dominance

A. 9:7
B. 3:1
C. 1:2:1
D. 1:1:1:1

Q23. Result of incomplete dominance

A. Intermediate genotype
B. Intermediate phenotype
C. Recessive phenotype
D. Epistasis

Q24. Genotype TtYyRr produces how many gametes?

A. 2
B. 4
C. 6
D. 8

Q25. Single gene affecting multiple traits is

A. Pleiotropy
B. Polygenic inheritance
C. Epistasis
D. Atavism