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ExtremeBDS [4]
3 years ago
14

Which of the following are true statements?

Biology
1 answer:
Studentka2010 [4]3 years ago
6 0

Answer:

All of the above

Explanation:

The nucleus constitute DNA-protein complex termed chromatin. Chromatin is simply DNA  double helix entwined around proteins referred to as histones. These appear like beads when  stretched out, and each “bead” (DNA and histone) form the nucleosome. Genes are hereditary materials found on DNA. Chromosomes are composed of closely-packed chromatin, and become clearly visible  under a microscope during mitosis. During this stage the chromosomes have undergone the S Phase of the cell cycle, hence a copy of the DNA has been synthesized by DNA polymerase.

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Where do bile and pancreatic enzymes enter the small intestine?
BartSMP [9]

Answer:

The correct answer is duodenum

Explanation:

Bile is a digestive enzyme that is secreted by the liver which is temporarily stored in the gall bladder and pancreatic enzyme is released by the pancreas. The bile is secreted to the small intestine through the common bile duct and the pancreatic duct joins the common bile duct just before ampulla of Vater which opens in the first intestinal portion which is duodenum.

So bile and pancreatic enzymes enters the duodenum region of the small intestine and after getting in the small intestine it digests the complex macromolecules into simpler and smaller form which can be absorbed through the intestinal epithelium.  

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4 years ago
What is meant by the clonal expansion of a b cell?.
Ugo [173]

Answer:

<h2>An activated B cell divides into cells that give rise to memory B cells and plasma cells.</h2>

Thanks!

Mark me brainliest!

6 0
3 years ago
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Mrrafil [7]

Answer:

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3 years ago
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What are possible benefits of studying Biology?
IRINA_888 [86]
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7 0
3 years ago
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