Which of the following is a monohybrid?
(1) TT
(2) tt
(3) Tt
(4) None
Genotypic and phenotypic ratios of monohybrid cross are
(1) 3:1 and 1:2:1
(2) 1:2:1 and 3:1
(3) 1:2:1 and 1:2:1
(4) 3:1 and 3:1
What is the means of segregation in Law of segregation?
(1) Allelic separation
(2) Chromosomal separation
(3) Crossing over
(4) Linkage
Incomplete dominance is present in
(1) Snapdragon flower
(2) Dog flower
(3) Antirrhinum flower
(4) All of the above
A cross was performed between pea plants P1 (violet flower) and P2 (white flower). If obtained progeny showed ratio of 1 (violet) : 1 (white) , then determine the genotype of P1.
(1) Homozygous recessive
(2) Heterozygous
(3) Homozygous dominant
(4) Can’t be determined
ABO blood groups are controlled by which gene
(1) a
(2) I
(3) b
(4) All of the above
What does Blending inheritance refers to?
(1) Mixed characters in an offspring
(2) Dominant character
(3) Recessive character
(4) Dominant & recessive character
Our ancestors knew about the inheritance of characters and variations because-
(1) They selectively breed plants and animals and selected for organisms that possessed desirable characters.
(2) They introduced mutations
(3) They performed natural hybridisation
(4) All of the above
Monohybrid cross can be defined as
(1) Cross between plants differing in one chromosome
(2) Cross between plants differing in one character only
(3) Cross between plants differing in two traits
(4) All of the above
Types of gametes produced by a homozygous parent
(1) many
(2) single type
(3) depends upon number of genes
(4) depends upon number of chromosomes