Question Text
Question 1 :
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 2 :
In tobacco plant, the male gametes have twenty four chromosome.What is the number of chromosomes in the zygote?
Question 3 :
During adolescence, several changes occur in the human body. Mark one change associated with sexual maturation in boys
Question 4 :
<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 5 :
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 6 :
Whether secretion of estrogen is the function of testes at puberty?
Question 8 :
In tobacco plant, the male gametes have twenty four chromosomes. What is the number of chromosomes in the female gamete?
Question 9 :
<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 10 :
What changes are observed in the uterus subsequent to implantation of young embryo?