NEET Biology: Questions 3140 - 3144 of 3146

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Question number: 3140

» Genetics and Evolution » Evolution » Origin of Life

Appeared in Year: 2016

MCQ▾

Question

Which of the following is the correct sequence of events in the origin of life?

I. Formation of protobionts

II. Synthesis of organic monomers

III. Synthesis of organic polymers

IV. Formation of DNA-based genetic systems

Choices

Choice (4) Response

a.

II, III, IV, I

b.

II, III, IV

c.

I, III, II, IV

d.

II, III, I, IV

Question number: 3141

» Reproduction » Human Reproduction » Pregnancy and Placenta Formation

Appeared in Year: 2016

MCQ▾

Question

Several hormones like hCG, hPL, estrogen, progesterone are produced by

Choices

Choice (4) Response

a.

Ovary

b.

Placenta

c.

Fallopian tube

d.

Pituitary

Question number: 3142

» Human Physiology » Body Fluids and Circulation » Coagulation of Blood

Appeared in Year: 2016

MCQ▾

Question

Name the blood cells, whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body.

Choices

Choice (4) Response

a.

Leucocytes

b.

Erythrocytes

c.

Thrombocytes

d.

Neutrophils

Question number: 3143

» Genetics and Evolution » Evolution » Human Evolution

Appeared in Year: 2016

MCQ▾

Question

The chronological order of human evolution from early to the recent is

Choices

Choice (4) Response

a.

Ramapiihecus Homo habilis Australopithecus Homo erectus

b.

Ramapithecus Australopithecus Homo habilis Homo erectus

c.

Australopithecus Homo habilis Ramapithecus Homo erectus

d.

Australopithecus Ramapithecus Homo habilis Homo erectus

Question number: 3144

» Human Physiology » Locomotion » Skeletal Muscle- Contractile Proteins and Muscle Contraction

Appeared in Year: 2016

MCQ▾

Question

Name the ion responsible for unmasking of active sites for myosin for cross-bridge activity during muscle contraction.

Choices

Choice (4) Response

a.

Magnesium

b.

Calcium

c.

Sodium

d.

Potassium

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