Question 1 :
In tobacco plant, the male gametes have twenty four chromosome.What is the number of chromosomes in the zygote?
Question 2 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc184f78c526e972caea1a.PNG' />
In the above figure, what is C?
Question 3 :
What changes are observed in the uterus if fertilisation does not occur?
Question 4 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc185078c526e972caea1f.PNG' />
In the above figure, which part mention the function Site of implantation.
Question 5 :
Why cannot fertilisation take place in flowers if pollination does not occur?
Question 6 :
Whether development of placenta is the function of testes at puberty?
Question 7 :
In tobacco plant, the male gametes have twenty four chromosomes. What is the number of chromosomes in the female gamete?
Question 9 :
State whether the statement is TRUE or FALSE : Colonies of yeast fail to multiply in water, but multiply in sugar solution.
Question 11 :
The correct sequence of organs in the male reproductive system for transport of sperms is
Question 12 :
In human males, the testes lie in the scrotum, because it helps in the
Question 13 :
Gather information about the chromosome numbers of five animals and five plants. Correlate the number with the size of organism and answer the following questions: More the number of chromosomes/cells greater is the DNA content.
Question 14 :
What changes are observed in the uterus subsequent to implantation of young embryo?
Question 15 :
Gather information about the chromosome numbers of five animals and five plants. Correlate the number with the size of organism and answer the following questions: Do larger organisms have more number of chromosomes/cells?
Question 16 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc185078c526e972caea1d.PNG' />
In the above figure, would a Planaria cut vertically into two halves regenerate into two individuals?
Question 17 :
In human females, an event that reflects onset of reproductive phase is
Question 18 :
Gather information about the chromosome numbers of five animals and five plants. Correlate the number with the size of organism and answer the following questions: Can organism with fewer chromosomes reproduce more easily than organisms with more number of chromosomes?
Question 19 :
Whether formation of germ cells is the function of testes at puberty ?
Question 20 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc184f78c526e972caea1a.PNG' />
In the above figure, what is B?
Question 21 :
Whether secretion of estrogen is the function of testes at puberty?
Question 22 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc185078c526e972caea1f.PNG' />
In the above figure, which part mention the function Entry of the sperms.
Question 23 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc184f78c526e972caea1a.PNG' />
In the above figure, what is A?
Question 25 :
Whether secretion of testosterone is the function of testes at puberty?
Question 27 :
What would be the ratio of chromosome number between an egg and its zygote?
Question 28 :
Can you consider cell division as a type of reproduction in unicellular organism?
Question 29 :
During adolescence, several changes occur in the human body. Mark one change associated with sexual maturation in boys