The diagram represents gametes P and Q fusing to give cell R.
The cell then produces gametes S,T, U and V.
5. Which statement about the number of chromosomes in the cells and the gametes is correct?
a) The number of chromosomes in P and Q are different.
b) The number of chromosomes in P and Q are same.
c) The number of chromosomes in S is one quarter of chromosomes in R.
d) ) The number of chromosomes in T is half the number of chromosomes in Q.
6. If the number of chromosomes in R is 120, how many chromosomes will be there in S and P
7. Is this diagram applicable for asexual reproduction? justify your statement.
Answers
Answer:
The male gamete is formed by spermatogenesis. The female gamete is formed by oogenesis. This process of formation of male and female gametes is called gametogenesis. Syngamy is a process in sexual reproduction that is defined as the fusion of the male gamete i.e sperm with the female gamete i.e egg resulting in the formation of a diploid zygote. Pand Q depict asexual reproduction. Thus the correct answer is option C.
Answer:
B (the number of chromosomes in P & Q are same)
Explanation:
(5) In case of human beings, the gametes have half number of chromosomes that is only 23 chromosomes where as a normal cell in our body has 46 chromosomes or 23 pairs of chromosomes.
(6) I don't knw!
(7)Asexual reproduction is the process of formation of new individuals from specialized or unspecialized parts of a single parent without fertilization or fusion of gametes. Because of the formation of new organisms from one parent, asexual reproduction is also called uni-parental reproduction. It is commonly found in unicellular organisms, plants, and lower animals like sponges, hydra etc. Some common modes of asexual reproduction are fission, budding, fragmentation, regeneration, spore-formation, and vegetative reproduction.