NSO Level 1- Science Olympiad (SOF) Class 12: Questions 24 - 28 of 60

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Question number: 24

» Biology » Biology in Human Welfare

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MCQ▾

Question

Blastoma is a cancer involving which tissue.

Choices

Choice (4) Response

a.

Connective tissue

b.

Embryonic tissue

c.

Epithelial cells

d.

Bones

Question number: 25

» Biology » Biology in Human Welfare

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Matching-Pair▾

Question

Find the pair which does not match:

Choices

Choice (4) Response

a.

Tenis

Indigenous breed

b.

White Plymouth Rock

American breed

c.

Minorca

Mediterranean breed

d.

Langshan

English breed

Question number: 26

» Biology » Reproduction

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MCQ▾

Question

The unfertilized secondary oocyte undergoes autolysis during the bleeding phase of menstrual cycle then what will be the interplay of hormones at that time?

Choices

Choice (4) Response

a.

Progesterone inhibits the release of LH from pituitary causing regression of corpus luteum

b.

Hypertrophy of endometrial lining is continued by progesterone and estrogen.

c.

Regression of corpus luteum occurs because of LH level reduced by Prolactin and progesterone

d.

Progesterone secretion is inhibited by prolactin and estrogen which leads to sloughing off of uterine lining.

Question number: 27

» Biology » Biology in Human Welfare

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MCQ▾

Question

A person gets injured in an accident and his nasal septum gets damaged so for his recovery which cartilage can be used?

Choices

Choice (4) Response

a.

Calcified cartilage

b.

Hyaline cartilage

c.

Fibrous cartilage

d.

Elastic cartilage

Question number: 28

» Biology » Biology in Human Welfare

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MCQ▾

Question

What is approximate life span of human WBC?

Choices

Choice (4) Response

a.

Between 2 to 3 months

b.

More than 5 months

c.

Between 20 to 30 days

d.

Less than 10 days

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