1.  the ratio of pairs of X-chromosomes to the pairs of autosomes

2.  whether the egg is fertilized or develops parthenogenetically

3.  the ratio of number of X-chromosomes to the set of autosomes

4.  X and Y-chromosomes

4
Correct Answer :

the ratio of number of X-chromosomes to the set of autosomes


Explanation :
No Explanation available for this question

1.  mechanical pressure and enzymes  

2.  hooks and suckers  

3.  softening by enzymes  

4.  only by mechanical pressure  

4
Correct Answer :

mechanical pressure and enzymes

 


Explanation :
No Explanation available for this question

1.  Down's syndrome

2.  sleeping sickness

3.  haemophilia B

4.  hepatitis B

4
Correct Answer :

haemophilia B


Explanation :
No Explanation available for this question

1.  Cuscuta - parasite

2.  Dischidia - insectivorous

3.  Opuntia - predator

4.  Capsella - hydrophyte

4
Correct Answer :

Cuscuta - parasite


Explanation :
No Explanation available for this question

1.  More diversity in varieties  

2.  Frequency of dominant gene is more  

3.  Climatic conditions more favourable  

4.  None of the above  

4
Correct Answer :

More diversity in varieties

 


Explanation :
No Explanation available for this question

1.  do not show independent assortment

2.  induce cell division

3.  do not show a chromosome map

4.  show recombination during meiosis

4
Correct Answer :

do not show independent assortment


Explanation :
No Explanation available for this question

1.  Transfer of some genes from one bacteria to another bacteria through virus

2.  Transfer of genes from one bacteria to another bacteria by conjugation

3.  Bacteria obtained its DNA directly

4.  Bacteria obtained DNA from other external source

4
Correct Answer :

Transfer of some genes from one bacteria to another bacteria through virus


Explanation :
No Explanation available for this question

1.  attack (offence)

2.  protection (defence)

3.  both (1) and (2) 

4.  isolation

4
Correct Answer :

both (1) and (2) 


Explanation :
No Explanation available for this question

1.  Sigmoid

2.  Hyperbola

3.  Ascending straight line

4.  Descending straight line

4
Correct Answer :

Ascending straight line


Explanation :
No Explanation available for this question

1.  Predation

2.  Cutting down of forests

3.  Destruction of habitats

4.  Hunting

4
Correct Answer :

Destruction of habitats


Explanation :
No Explanation available for this question

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