Modern humans have 46 chromosomes. Their sperms and eggs will have __ and chromosomes respectively.

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Solution

Chromosomes:
Chromosomes are thread-like structures present inside the nucleus of a cell.
Each organism has a fixed number of chromosomes; which is 46 in human beings
The life of a human being starts as a single cell called a zygote which has 46 chromosomes(23 each from male and female parents).
So, gametes (an egg and sperm) are haploid and have only half the number of chromosomes i.e. 23 in human beings.
Gametes are formed by meiosis.
Final answer: Modern humans have 46 chromosomes. Their sperm and eggs will have 23 and 23 chromosomes respectively.

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(a) Mitosis occurs in our ..... cells.
(b) Mitosis produces two daughter cells whereas meiosis produces ...... daughter cells.
(c) Meiosis occurs only in ..... cells.
(d) Modern humans have 46 chromosomes. Their sperms and eggs will have......chromosomes each.
(e) During the pairing of chromosomes in meiosis, the ...... chromosomes come to lie side by side.
(f) The.......(s) are surrounded by radiating rays and termed as aster.

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?

Humans have 46 chromosomes. How many chromosomes will their sperm and egg have?

Q. The nerve cell of humans have 46 chromosomes. The chromosome number in the sperm of a male human will be __________.

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 ?

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Modern humans have 46 chromosomes. Their sperms and eggs will have ______ and ____ chromosomes respectively.

Modern humans have 46 chromosomes. Their sperms and eggs will have __ and chromosomes respectively.