The ratio of number of chromosomes in a human zygote and a human sperm is :
(a) 2 : 1
(b) 3 : 1
(c) 1 : 2
(d) 1 : 3

Q. The ratio of number of chromosomes in a human zygote and a human sperm is:​

Q. What is the ratio of the number of chromosomes in a human zygote to that of a human sperm?

Q. The ratio of the number of chromosomes in a human zygote and a human ovum (egg) is

Q. If the ratio of the areas of two squares is 9 : 1, then the ratio of their perimeters is

(a) 2 : 1 (b) 3 : 1 (c) 3 : 2 (d) 4 : 1

Q. (a) If a normal human cell has 46 chromosomes, how many chromosomes will be there in a human (i) sperm cell, and (ii) zygote?
(b) What sizes of plants are produced if both parents have genes Tt?