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Sperm motility is due to

A population of diploid organisms is at Hardy-Weinberg equilibrium. If the frequency of allele A is 0.1, the frequency of AA is

Match List-I with List-II.
List-I:
A. Transformation
B. Cloning site
C. Selection
D. Ori
List-II:
I. Restriction enzyme
II. Transfer DNA to host bacteria
III. Replication
IV. Antibiotic
Choose the correct answer from the options given below:

Which of the following statements about lac-operon is correct?

Which of the following disease is not sexually transmitted?

Which of the following in female gametophyte of an angiosperm helps in guiding the pollen tube for fertilizing the eggs?

Colostrum, secreted by mother during initial days of lactation, is abundant in

The inactive form of Bt toxin is converted to the active form in the insect gut

Which of the following is not evidence for evolution?

The opening between the right atrium and the right ventricle is guarded by

Given below are two statements:
Statement I: Ovulation is caused by LH surge leading to rupture of Graafian follicles.
Statement II: Graafian follicle remaining after ovulation transform into corpus luteum and secretes large amount of estrogen.
In the light of the above statements, choose the most appropriate answer from the options given below:

Which of the following struture is not a part of the male reproductive system?

Which of the following is used as a clot buster?

The covering of ovum at ovulation is

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Abingdon tortoise in Galapagos islands became extinct within a decade after goats were introduced.
Reason R: Goats were more efficient at browsing than Abingdon tortoise.
In the light of the above statements, choose the most appropriate answer from the options given below:

Which of the following plant produces non-albuminous seeds?

Which of the following is used as an effective sedative and painkiller for treating post-surgery patients?

Given below are two statements:
Statement I: Modern Homo sapiens arose in Australia and moved across continents.
Statement II: Homo sapiens arose around 75000 to 10000 years ago.
In the light of the above statements, choose the most appropriate answer from the options given below:

For a person with blood group 'O', which of the following is not a possible combination of parents' blood group genotypes?

Sponges exchange $O_{2}$ with $CO_{2}$ by