NSO Level 1- Science Olympiad (SOF) Class 12: Questions 39 - 42 of 106

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Question 39

Question

MCQ▾

A woman has a rare abnormality of eyelids called ptosis which does not let her open her eyes completely. The condition has been found to depend on a single dominant gene. The woman՚s mother has normal eyelids but her father has ptosis. Her father՚s mother had normal eyelids.

From the given options which option is correct for the given paragraph?

Choices

Choice (4)Response

a.

Parents of woman have heterozygous genotypes.

b.

Homozygous recessive genotype is present in woman.

c.

Homozygous recessive genotype is present in woman՚s father.

d.

Homozygous recessive genotype is present in woman՚s mother.

Question 40

Question

MCQ▾

Where can we expect to find seed if it is defined as an ovule that is modified because of fertilization?

Choices

Choice (4)Response

a.

All vascular plants

b.

Phanerogams

c.

Only in Gymnosperm

d.

Only in Angiosperm

Question 41

Question

MCQ▾

Choose the correct enzyme – substrate pair.

Choices

Choice (4)Response

a.

Protein – Amylase

b.

Maltase - Lactose

c.

Rennin – Caesin

d.

Carbohydrate – Lipase

Question 42

Question

MCQ▾

Who put forth the Phylogenetic system of classification?

Choices

Choice (4)Response

a.

George Bentham

b.

Theophrastus

c.

Carolus Linnaeus

d.

Adolf Engler and Karl Prantl

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