NEET Zoology Practice Papers-2

Which of the following is a non-specific defense?

The inflammatory response

The B-cell response

The T-cell response

Sickle cell anemia is an example of-

Point mutation

both

frameshift mutation

A DNA library is ---

A collection of DNA fragments that make up the entire genome of a particular organism

A collection of all genes sequenced so far

A DNA fragment inserted into the vector

Tick the incorrect match:-

ADH: - It decreases blood pressure, decreases glomerular blood flow and thereby the GFR

Henle’s Loop :- Reabsorption in this segment is minimum

PCT :- 70 to 80 percent of electrolytes and water are reabsorbed by this segment

Who was the first member of the genus Homo?

Homo sapiens

Homo erectus

Homo habilis

What type of blood contains B-antibodies (but not A antibody), in the plasma and lacks Rh-antigens?

B- negative

A- negative

AB- negative

In vertibrates, the notochord is modified into -

both

centrum of vertebrae

vertebral column

What is the role of Ca2+ ions in muscle contraction?

It binds to troponin, enabling tropomyosin to release ATP

It binds to tropomyosin, enabling troponin to release ATP

It binds to troponin, enabling the tropomyosin to move, thereby unmasking the active sites for myosin

Hisardale, a new breed of sheep developed in Punjab is an example of-

Inbreeding

Outcrossing

Cross-breeding

If the sodium-potassium pump of a neuron failed, what effect would this likely have on the neurons functions?

The concentration of sodium ions would be higher outside the cell and potassium ions would be higher inside

The neuron could not conduct another action potential until the resting potential was fully restored

The concentration of positive and negative ions would cause the neuron be negative inside

Which hormone is secreted when a person is running up the stairs, he experiences increased rate of heart beat, respiration and cardiac output?

Adrenaline and nor-adrenaline

Aldosterone and cortisol

Insulin and glucagon

How is the digestion of fats different from that of proteins and carbohydrates?

Fat digestion occurs in the small intestine, and the digestion of protein and carbohydrates occurs in the stomach

Fats enter the hepatic portal circulation but proteins and carbohydrates enter the lymphatic system

Fats are absorbed into the cells as fatty acids and monoglycerides but are then modified for the absorption into lymph while aminoacids and glucose are not modified further

Which of the following cannot be used as a vector?

Plasmid

both

Bacterium

What is the term used for inserting a healthy copy of a gene into a person who has a defective gene?

Polymerase chain reaction (PCR)

Gene therapy

Recombinant DNA

New strains of bird flu viruses are most likely to arise in far east because of-

Environmental mutagens that cause changes in viral RNA

Over population in these areas

Common hosts (ducks, chicken, pigs) live in close proximity to humans

The HIV-virus is particularly dangerous because it attacks

60% to 80% circulating T-cells in the body

Cells with CD4 + coreceptor

Helper T-cells

All of these

One of the important consequence of geographical isolation is :-

preventive speciation

speciation through reproductive isolation

random creation of new species

Which is not involved in the knee jerk reflex?

Motor neuron

An interneuron

Muscle spindle

Find the incorrect match.-

IUI - Intrauterine insemination

ICSI - Sperms are directly injected into ovum

ZIFT - Embryos with more than eight blastomeres are transferred into the fallopian tube

which of the following drug is anti-anxiety in nature?

Benzodiazepines

Barbiturates

Both

Which of the following is the most abundant protein in animals?

keratin

haemoglobin

collagen

Antigen binding site of antibody molecule is made up of

Variable region of heavy chain

Variable regions of both light and heavy chains, present at N-terminal end

Variable region of light chain

False statement w.r.t. HCG is---

If fertilisation occurs, the corpus luteum is rescued from regression by hCG, produced by the placenta

High levels of hCG in uterus stimulates endometrial thickening

High levels of circulating hCG, stimulate estrogen and progesterone synthesis

Which of the following statements is not true?

Aldosterone is produced by the anterior lobe of pituitary in response to high levels of sodium ions in blood plasma

Uric acid is least soluble and least toxic of the nitrogenous products

ADH makes the collecting duct more permeable to water

Which of the following correctly explains a phase/ event in cardiac cycle in a standard electro cardiogram?

Q-wave: - Represents depolarisation of atria

T-wave: - Represents ventricular repolarisation

P-wave: - Marks the beginning of ventricular systole

NEET Zoology Practice Papers-2

Which of the following is a non-specific defense?

Sickle cell anemia is an example of-

A DNA library is ---

Tick the incorrect match:-

Who was the first member of the genus Homo?

What type of blood contains B-antibodies (but not A antibody), in the plasma and lacks Rh-antigens?

In vertibrates, the notochord is modified into -

What is the role of Ca2+ ions in muscle contraction?

Hisardale, a new breed of sheep developed in Punjab is an example of-

If the sodium-potassium pump of a neuron failed, what effect would this likely have on the neurons functions?

Which hormone is secreted when a person is running up the stairs, he experiences increased rate of heart beat, respiration and cardiac output?

How is the digestion of fats different from that of proteins and carbohydrates?

Which of the following cannot be used as a vector?

What is the term used for inserting a healthy copy of a gene into a person who has a defective gene?

New strains of bird flu viruses are most likely to arise in far east because of-

The HIV-virus is particularly dangerous because it attacks

One of the important consequence of geographical isolation is :-

Which is not involved in the knee jerk reflex?

Find the incorrect match.-

which of the following drug is anti-anxiety in nature?

Which of the following is the most abundant protein in animals?

Antigen binding site of antibody molecule is made up of

False statement w.r.t. HCG is---

Which of the following statements is not true?

Which of the following correctly explains a phase/ event in cardiac cycle in a standard electro cardiogram?

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