RE-NEET Zoology Class 12 Questions

Which of the following hormone is not secreted by human placenta?

Which of the following is used as a clot buster?

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Forelimbs of human and bats are homologous. Reason R : Forelimbs of humans and bats have similar anatomical structure. In the light of the above statements, choose the most appropriate answer from the options given below :

If the diploid chromosome number of a typical angiosperm is 36, what would be the chromosome number in its endosperm?

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?

The covering of ovum at ovulation is

Adaptive radiation in placental mammals and Australian Marsupials, leading to similarity between distant species is an example of

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:

Natural selection can lead to _________. Choose the correct answer from the options given below:

The method of directly injecting a sperm into ovum in assisted reproductive technology is called:

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

Which of the following is not evidence for evolution?

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 100000 years ago. In the light of the above statements, choose the most appropriate answer from the options given below:

Which evolutionary phenomenon is depicted by the sketch given in figure?

Enzymes that catalyse the removal of groups from substrates by mechanisms other than hydrolysis leaving double bonds, are known as:

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: During menstrual cycle, the ovulation takes place approximately on 14^{th} day. Reason R: Rapid secretion of LH in the middle of menstrual cycle induces rupture of Graafian follicle and thereby the release of ovum. In the light of the above statements, choose the most appropriate answer from the options given below.

Match List-I with List-II with respect to convergent evolution:

Match List-I with List-II relating to microbes and their products:

Match List-I with List-II relating to examples of various kind of IUDs and barrier:

Arrange the following parts in human Mammary gland, traversing the route of milk ejection. A. Mammary duct B. Lactiferous duct C. Mammary alveolus D. Ampulla E. Mammary tubule Choose the correct answer from the options given below:

Match List-I with List-II:

Following is the list of STD's. Select the diseases which are not completely curable. A. Genital warts B. Genital herpes C. Syphilis D. Hepatitis-B E. Trichomoniasis

Match List-I with List-II relating to human female external genitalia.

Following are the steps involved in the process of PCR. A. Annealing B. Amplification (~1 billion times) C. Denaturation D. Treatment with Taq polymerase and deoxynucleotides E. Extension Choose the correct sequence of steps of PCR from the options given below:

Match List-I with List-II: