NEET Botany MCQs

In some plants thalamus contributes to fruit formation. Such fruits are termed as:

• False fruits
• Aggregate fruits
• True fruits
• Parthenocarpic fruit

In water hyacinth and water lily, pollination takes place by:

• insects or wind
• water currents only
• wind and water
• insects and water

The plant parts which consist of two generations - one within the other:<br> A. Pollen grains inside the anther<br> B. Germinated pollen grain with two male gametes<br> C. Seed inside the fruit<br> D. Embryo sac inside the ovule

• (A) only
• (A), (B) and (C)
• (C) and (D)
• (A) and (D)

How many true breeding pea plant varieties did Mendel select as pairs, which were similar except in one character with contrasting traits?

• 4
• 2
• 14
• 8

Identify the wrong statement with reference to the gene 'I' that controls ABO blood groups.

• The gene (I) has three alleles.
• A person will have only two of the three alleles.
• When I^A and I^B are present together, they express same type of sugar.
• Allele 'i' does not produce any sugar.

Experimental verification of the chromosomal theory of inheritance was done by:

• Mendel
• Sutton
• Boveri
• Morgan

Select the correct match.

• <table> <tr> <td>Haemophilia - </td> <td> Y linked</td> </tr> </table>
• <table> <tr> <td>Phenylketonuria -</td> <td> Autosomal dominant trait</td> </tr> </table>
• <table> <tr> <td>Sickle cell anaemia -</td> <td> Autosomal recessive trait, chromosome-11 </td> </tr> </table>
• <table> <tr> <td>Thalassemia -</td> <td> X linked</td> </tr> </table>

The number of contrasting characters studied by Mendel for his experiments was:

• 14
• 4
• 2
• 7

Chromosomal theory of inheritance was proposed by:

• Sutton and Boveri
• Bateson and Punnet
• T. H. Morgan
• Watson and Crick

The best example for pleiotropy is:

• Skin colour
• Phenylketoneuria
• Colour Blindness
• ABO Blood group