Question # 1

Evolution of pollen tube is parallel to the evolution of

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Stem

Leaves

Flower

Seed

In which developmental stage, germ layers are formed.

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Cleavage

Blastula

Gastrula

Organogenesis

The human egg is swept through the oviduct toward the uterus by:

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The beating of the egg's cilia

Rhythmic contraction of the uterus

Rhythmic contraction of the oviduct

The beating of the cilia in the oviduct

The form of appearance of the trait is called.

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Genotype

Phenotype

Wild type

dominance

The most threatened areas on the earth have been reduced to 44% of their original extent are

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Tropical rain forests

Temperate rain forests

Carbiniferous forests

Deciduous rain forests

What are significant happening of meiosis.

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Crossing over

Random assortment of chromosome

Linkage

Crossing over and random assortment of chromosomes

Innate behavior is all except;

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Coded in DNA

Modified in individuals life span

Modified with species evolution

Programmed responses to external stimuli

Number of cervical vertebrae in a male camel

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7

11

15

18

All are related to medulla oblongata, except.

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Long term memory

Breathing rate

Blood pressure

Heart beat rate

Which of the following is the last structure that urine passes through duration its excretion from the body?

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Distal Tubule

Urethra

Urinary bladder

Ureter

A callus is an undifferentiated group of

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Cells

Tissues

Organs

Systems

Antidiuretic hormone is also called

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Oxytocin

ACTH

Vasopressin

Both a & b

The chromatids repel each other during.

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Leptotene

Zygotene

diplotene

Pachytene

Blood serum containing antibodies is called.

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Plasma

Antigen

Antiserum

Immuno globulin

In humans ,MSH(melanocyte-stimulating hormone) ___________

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Regulates primary skin color

Causes the thyroid to produce thyroxin

Governs the rate of tarming

Concentration is very low.

Animals excreting urea are called.

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Ammonotelic

Ureotelic

Uricotelic

Aminotelic

If the two generations are vegetatively similar such alternation of generation is referred to as

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Homomorphic

Isomorphic

Heteromorphic

Eumorphic

The first restriction enzyme was isolated by

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Kary mulis

Hamilton O. smith

Sagar

Maxam gilbret

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