2
Q:

Which are the special proteins in muscles that contract and relax to cause movement?

 

A) Contractile protein B) Receptor protein
C) Structural protein D) Enzymatic protein

Answer:   A) Contractile protein



Explanation:
Subject: Biology
Exam Prep: Bank Exams
Q:

Which of the following statements is true?

A) In grasshoppers and some insects, the male has only four sex chromosomes B) A male individual contains one X and two Y chromosomes
C) In human beings, there are 46 chromosomes, of which 42 (21 pairs) are autosomes D) In diploid organisms having separate sexes, a specific pair of chromosomes in each diploid cell determines the sex of the individual, they are called sex chromosomes.  
 
Answer & Explanation Answer: D) In diploid organisms having separate sexes, a specific pair of chromosomes in each diploid cell determines the sex of the individual, they are called sex chromosomes.  

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0 527
Q:

___ has naked seeds.

A) Pinus B) Lemon
C) Carrot D) Wheat
 
Answer & Explanation Answer: A) Pinus

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2 744
Q:

Rickets is caused due to the deficiency of

A) Vitamin D B) Vitamin A
C) Vitamin B D) Vitamin C
 
Answer & Explanation Answer: A) Vitamin D

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3 665
Q:

What marks the onset of puberty in females?

A) Menopause B) Adolescence
C) Menstruation D) Menarche
 
Answer & Explanation Answer: D) Menarche

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0 670
Q:

Plants of which group are predominantly aquatic?

 

A) Thallophyta B) Bryophyta
C) Pteridophyta   D) No option is correct
 
Answer & Explanation Answer: A) Thallophyta

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2 12468
Q:

Which shows the order in which vertebrates evolved?

 

 

A) fish, reptiles, amphibians, birds, mammals   B) amphibians, fish, reptiles, birds, mammals  
C) amphibians, fish, birds, reptiles, mammals   D) fish, amphibians, reptiles, birds, mammals
 
Answer & Explanation Answer: D) fish, amphibians, reptiles, birds, mammals

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3 7010
Q:

Birth control pills contain

 

A) Progesterone only B) Estrogen only
C) Mixture of progesterone and estrogen derivative D) Neither progesterone nor estrogen
 
Answer & Explanation Answer: C) Mixture of progesterone and estrogen derivative

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3 4787
Q:

A protruding part of the throat that is responsible for growing voice box in boys is called

A) Larynx B) Testosterone
C) Pharynx D) Adam's Apple
 
Answer & Explanation Answer: D) Adam's Apple

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3 1029