Which of the following is a structural protein?

Biology

2 answers:

alina1380 [7]4 years ago

6 0

Answer:

The correct answer is Collagen and Keratin

Explanation:

Structural proteins are responsible for making structural components like bones, nails, cartilage, skin, etc. Some structural proteins are protective in function.

One of the most abundant structural protein present in vertebrates is collagen protein. It is the major structural protein which makes bone, cartilage, tendons, ligaments, muscles, skin.

Keratin is a fibrous protein found in eukaryotes. It usually forms hair, nail, feathers, horns, hooves and outer layer of skin in vertebrates and play important function in protection because it provides protective covering.

So, the correct answer is Collagen and Keratin .

sasho [114]4 years ago

3 0

Answer:

actin and myosin

Explanation:

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Explain the difference between prezygotic isolating mechanisms and postzygotic isolating mechanisms.

anastassius [24]

<h3><u>Answer and Explanation;</u></h3>

Prezygotic isolation is a type of reproductive isolation that occurs before the formation of a zygote can take place. In most cases mating does not even occur. Forms of prezygotic isolation include spatial, behavioral, mechanical and temporal isolation.
Postzygotic isolation on the other hand occurs after members of two different species have mated and produced a zygote. Forms of postzygotic isolation includes; hybrid sterility, hybrid inviability and hybrid breakdown.
Therefore; Prezygotic isolation prevents the fertilization of eggs while postzygotic isolation prevents the formation of fertile offspring.