1
NDA General Ability 3 September 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
An important cause of tooth decay by the bacterium Streptococcus mutans is because of their ability to attach to teeth surface by producing slime layer from
A
Sugar
B
Alcohol
C
Saliva
D
Teichoic acid
2
NDA General Ability 3 September 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
In angiosperms, pollen grain germinates to produce two male gametes. Which one of the following functions is carried out by these gametes?
A
Both the gametes fuse with a single egg cell
B
Both the gametes fuse with two different egg cells
C
One gamete fuses with the egg cell and the other one eventually degenerate
D
One gamete fuses with the egg cell and the other one fuses with a diploid secondary nucleus
3
NDA General Ability 3 September 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
In a sexually reproducing organism, which one of the following statements is appropriate both for the parent and offspring?
A
Chromosome number increases but DNA content remains constant
B
Both chromosome number and DNA content remains constant
C
Chromosome number decreases but DNA content remains constant
D
Both chromosome number and DNA content decreases
4
NDA General Ability 3 September 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Relationship between a flower and honey-bee will help the flower for/in
A
Faster development
B
Pollination
C
Quick germination of pollen 
D
Increase in size
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