What was possible phenotype of F2 progeny as a result of self cross of RrYy in garden pea plant?
a) 9:3:1:3
b) 9:3:3:1
c) 3:9:1:3
d) 9:1:3:3
Explanation: 9 round yellow, 3 round green, 3 wrinkle yellow and 1 wrinkle green
Independent assortment of genes occurs during…….in eukaryotes.
a) mitosis
b) meiosis
c) fertilization
d) pollination
Explanation: meiosis is reduction division in which the number of chromosomes reduces to half
Human diploid cells have 46 chromosomes; how many chromosomes will be present in the sperm of male?
a) 46
b) 23
c) 11.5
d) 92
Human diploid cells have 46 chromosomes; how many chromosomes will be present in the ovum of female?
a) 46
b) 23
c) 11.5
d) 92
Human diploid cells have 46 chromosomes; how many chromosomes will be present in the zygote?
a) 46
b) 23
c) 11.5
d) 92
Explanation: zygote is a diploid egg cell fertilized by sperm; (23+23=46)
How many rules of probability are helpful in solving genetics problems?
a) two
b) three
c) four
d) many
Explanation: the rule of multiplication and the rule of addition
