Question # 1

Chromosomes condensation occurs during .............. .

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G1-phase

G2-phase

S-phase

Interphase

The hepatic portal vein caries blood from the ____________ to the _______.

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Small intestines, liver

Small intestines, heart

Liver, heart

Small intestines, colon

Find the correct statement.

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Homologous chromosomes form pairs during mitosis

Chromosomes do not duplicate in the interphase preceding meiosis-I

Homologous chromosomes form pairs during mitosis but not mitosis

Spindles are not required during meiosis

The plasma membrane does all of these except ________

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Contains the hereditary material

Acts as a boundary or border for the cytoplasm

Regulates passages of material in and out of the cell

Functions in the recognition of cell

Which of the following variable is least likely to affect an enzymes rate of reaction?

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Temperature

pH

Carbon dioxide concentration

Enzyme concentration

When fibrinogen makes blood clot, it separates from blood and the remainder is called:

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Plasma

Lymph

Serum

Puss

A cell hydrolyses ATP to ADP & inorganic phosphate & almost .............. Kcal energy is released.

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7.3 Kcal

7.4 Kcal

7.2 Kcal

7.5 Kcal

Which of these are responsible for blood clotting?

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Platelets

Erythrocytes

Neutrophils

Baseophils

The element mostly present in an individual is

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Nitrogen

Carbon

Oxygen

Hydrogen

National animal of Pakistan is:

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Cow

Goat

Markhor

None of these

The phase which can exist for life is:

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G₀

G₁

G₂

S phase

Plants contain ____________

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Colorophyll

Chloroplast

Both a and b

None

Prokaryotic ribosomes is ...................

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20s

30

70s

80s

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