Page 2 - 3.Home Assignment ( Obj & Subj) - Reproductive phase of life in humans
P. 2
(b) 25 to 30 days
(c) 35 to 45 days
(d) 40 to 50 days
Q.7 The number of chromosomes present in human cell are -
(a) 25 pairs
(b) 22 pairs
(c) 23 pairs
(d) 21 pairs
Q.8 The number of sex chromosomes are -
(a) three
(b) two
(c) four
(d) One
Q.9 The age of menopause stage is -
(a) 45 to 50 years
(b) 40 to 45 years
(c) 50 to 55 years
(d) 25 to 35
Q.10 A female has -
(a) XY chromosomes
(b) YY chromosomes
(c) XX chromosomes
(d) ZZ chromosomes
SUBJECTIVE
Marks level
Q.1 What will be the sex of the child born: 1 E
(a) If X chromosome carrying sperm fuses with an egg cell carrying
X chromosome?
(b) If Y chromosome carrying sperm fuses with an egg cell carrying
X chromosome?
Q.2 How long does a woman’s reproductive life last? 1 E
Q.3 Differentiate between menarche and menopause. 1 Av
Q.4 Which chromosome does the unfertilised egg contain? 1 Av
Q.5 What is menstruation? Explain. 3 D
