AIPMT-MAINS Zoology Class 12 Questions

Which one of the following organisms is correctly matched with its three characteristics?

Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produced (in the host cells).

Biolistics (gene-gun) is suitable for:

What is it that forms the basis of DNA Fingerprinting?

Represented below is the inheritance pattern of a certain type of traits in humans. Which one of the following conditions could be an example of this pattern?

Identify the human developmental stage shown below as well as the related right place of its occurrence in a normal pregnant woman, and select the right option for the two together.

The secretory phase in the human menstrual cycle is also called:

Identify the molecules (a) and (b) shown below and select the right option giving their source and use.

Which one of the following statements is correct with respect to immunity?

The figure below shows three steps (A, B, C) of Polymerase Chain Reaction (PCR). Select the option giving correct 'identification together with what it represents'?

The first clinical gene therapy was given for treating:

Consider the following statements (A⁻D) about organic farming A. Utilizes genetically modified crops like Bt cotton B. Uses only naturally produced inputs like compost C. Does not use pesticides and urea D. Produces vegetables rich in vitamins and minerals Which of the above statements are correct?

Select the correct statement with respect to diseases and immunisation (1) Certain protozoans have been used to mass produce hepatitis B vaccine (2) Injection of snake antivenom against snake bite is an example of active immunisation (3) If due to some reason B⁻and T⁻lymphocytes are damaged, the body will not produce antibodies against a pathogen (4) Injection of dead / inactivated pathogens causes passive immunity

What happens during fertilisation in humans after many sperms reach close to the ovum?

Which one of the following conditions of the zygotic cell would lead to the birth of a normal human female child?

Read the following four statements (A⁻D) about certain mistakes in two of them (A) The first trangenic buffalo Rosie produced milk which was human alpha-lactalbumin enriched (B) Restriction enzymes are used in isolation of DNA from other macro-molecules (C) Downstream processing is one of the steps of R⁻DNA technology (D) Disarmed pathogen vectors are also used in transfer of R⁻DNA into the host Which are the two statements having mistakes?

The pathogen Microsporum responsible for ringworm disease in humans belongs to the same Kingdom of organisms as that of

Which one of the following techniques made it possible to genetically engineer living organisms?

Silencing of mRNA has been used in producing transgenic plants resistant to

The technique called gamete intrafallopian transfer (GIFT) is recommended for those females

Common cold is not cured by antibiotics because it is

Which one of the following options gives the correct matching of a disease with its causative organism and mode of infection

About which day in a normal human menstrual cycle does rapid secretion of LH (Popularly called LH⁻surge) normally occurs

In history of biology, human genome project led to the development of?

Bacillus thuringiensis forms protein crystals which contain insecticidal protein. This protein:

Which of the following are used in gene cloning?

Given below are four statements (A⁻D) each with one or two blanks. Select the option which correctly fills up the blanks in two statements. Statements: (A) Wings of butterfly and birds look alike and are the results of __ (i) __ evolution. (B) Miller showed that CH₄, H₂, NH₃ and __ (i) __ when exposed to electric discharge in a flask resulted in formation of __ (ii) __. (C) Vermiform appendix is a __ (i) __ organ and an __ (ii) __ evidence of evolution. (D) According to Darwin evolution took place due to __ (i) __ and __ (ii) __ of the fittest.

The most apparent change during the evolutionary history of Homo sapiens is traced in

Which one of the following is now being commercially produced by biotechnological procedures?

Which one of the following techniques is safest for the detection of cancers?

Signals from fully developed foetus and placenta ultimately lead to parturition which requires the release of

In human female the blastocyst

Jaundice is a disorder of

Which one of the following is monoecious?

A person suffering from a disease caused by Plasmodium, experiences recurring chill and fever at the time when?

In genetic engineering, a DNA segment (gene) of interest, is transferred to the host cell through a vector. Consider the following four agents (A⁻D) in this regard and select the correct option about which one or more of these can be used as a vector/ vectors Statements (A) A bacterium (B) Plasmid (C) Plasmodium (D) Bacteriophage

Polyethylene glycol method is used for:

Which one of the following is the correct matching of the events occurring during menstrual cycle?

Seminal plasma in humans is rich in:

The genetic defect - adenosine deaminase (ADA) deficiency may be cured permanently by:

Sickle cell anemia is:

When breast feeding is replaced by less nutritive food low in proteins and calories; the infants below the age of one year are likely to suffer from:

Given below is a diagrammatic sketch of a portion of human male reproductive system. Select the correct set of the names of the parts labelled A, B, C, D.

Foetal ejection reflex in human female is induced by:

Which of the following is a pair of viral diseases?

Which one of the following statements is correct?

The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is:

Use of anti-histamines and steroids give a quick relief from:

Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female?

In the case of peppered moth (Biston betularia) the black-coloured form became dominant over the light-coloured form in England during industrial revolution. This is an example of: