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horrorfan [7]
3 years ago
6

The fibrous protein responsible for the structure of hair and wool is

Biology
1 answer:
Ann [662]3 years ago
6 0
Keratin 

Hope this helps
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Identifying the genetic sex of a child is based on finding intracellular barr bodies that consist of?
AURORKA [14]

Identifying the genetic sex of a child is based on finding intracellular Barr bodies that consist of inactive chromatin material.

Inactive chromatin material is the one where no transcription takes place. It is also known by the name heterochromatin. It appears as a dark condensed form in the chromatin.

Barr bodies are the inactive X chromosomes. These are mad inactive by a process termed as lyonization. It is essential to make the chromosome inactive in organisms with XY type of sex determination. They are present at the periphery of the nucleus. Inactivation of X chromosome makes the amount of X chromosomes equal in both, males and females.

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2 years ago
What do all forms of transport have in common?
allsm [11]
Active transport requires energy from the cell. It occurs when substances move from areas of lower to higher concentration or when very large molecules are transported. Types of active transport include ion pumps, such as the sodium-potassium pump, and vesicle transport, which includes endocytosis and exocytosis.
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3 years ago
Match the following chemicals with their descriptions.
maria [59]

<span>Correct matches: chemicals with their descriptions. 
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<span>5.  gibberellins (chemicals produced by plants that stimulate stem elongation, seed germination, and flowering) </span>

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</span><span>A biome is composed of various diverging ecosystems that relates with the community. Biomes can either be deserts, grassland, savanna, tropical rain forest, taiga, boreal and etc.</span>

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