Assertion: Corpus luteum is produced by Graafian follicle after ovulation.
Reason: It secretes estrogen which is necessary to maintain pregnancy.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
B.
If both assertion and reason are true but reason is not the correct explanation of assertion
After ovulation, the empty Graafian follicle contains a blood clot which is called corpus haemorrhagic. Its granulosa cells continue to proliferate, develop yellow carotene pigment or lutein and get converted into lutein cells. This converts the ruptured follicle into yellow body called corpus luteum. It becomes a temporary endocrine gland secreting progesterone with small quantity of estrogen.
Assertion: A mangrove tree growing in marshy place has pneumatophores.
Reason: Pneumatophores help in better anchorage to marshy soil.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
Assertion: In some species of asteraceae and poaceae seeds are formed without fertilization.
Reason: Formation of fruit without fertilization is called parthenocarpy.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
Assertion: A gene from Bacillus thuringiensis is incorporated in plant genome to increase their yield.
Reason: Bacillus thuringiensis has Bt toxin producing gene, which kills the larva of insects
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
Which of the following features can be said to be a true defining feature of living beings without any exception
They can digest their food.
All of them can reproduce.
They can regenerate.
They can respond to external stimuli.
Assertion: Blood group 'O' have anti-A & antiB antibodies.
Reason: It does not have any antigens.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
Assertion: A geneticist crossed two plants, he got 50% tall and 50% dwarf progenies.
Reason: It follows Mendelian law as one of the parent plant might be heterozygous.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
Assertion: Algal blooms are formed in nutrientless water.
Reason: Algal blooms in water turn it unfit for human consumption, but cause enormous growth of fish.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
Assertion: Now-a-days amniocentesis is banned.
Reason: Amniocentesis gives the information of any abnormality in the foetus and many other complications regarding pregnancy can be detected.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
Assertion: Sporozoites of malarial parasite enter in the human body due to biting of freshly born female Anopheles mosquito, whose mother was a carrier of malarial parasite.
Reason: Male and female gametocytes of malarial parasites are formed in the human intestine
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.