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SashulF [63]
3 years ago
8

Which best describes how DNA fits inside a cell nucleus?

Biology
2 answers:
dolphi86 [110]3 years ago
8 0

Answer:

The correct answer is - DNA tightly coils around proteins and condenses into chromosomes, which fit in the nucleus.

Explanation:

The chromatin reticulum is present in the undivided cells, which condenses to form a rod-like form called a chromosome. The chromosome consists of DNA structures.

That DNA is a double helical structure and acidic in nature and it is present inside the chromosomes as it is coiled around histone protein which is basic in nature. That allows the DNA to fits in the nucleus.

Thus, the 3rd statement is the correct answer.

kolbaska11 [484]3 years ago
4 0

Answer:

C. DNA tightly coils around proteins and condenses into chromosomes, which fit in the nucleus.

Explanation:

Edgen uity quiz

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In the Scientific name, first word represents "Genus" and as they are same it indicates that their Genus are same

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Mushrooms are part of which sphere?
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When a magnet is dropped why soes it lose it magnetic properties
LUCKY_DIMON [66]
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5 0
3 years ago
Read 2 more answers
What are prokaryotic cells (single celled organisms)?​
Iteru [2.4K]

Answer:

yes

Explanation:

prokarotic cells are single celled and can procreate on their own

3 0
3 years ago
Describe the functions of the four photoreceptor proteins in human vision.
VLD [36.1K]

Answer:

In human vision, the cone visual opsins are grouped into four photoreceptor protein families LWS, SWS1, SWS2, RH2 .

  • SWS1: produce pigments sensitive to very short wavelengths, UV-violet, 360-450 nm.

  • SWS2: produce pigments sensitive to short wavelengths, blue, 450-495 nm

  • RH2: produce pigments sensitive to medium wavelengths, green, 495-560 nm

  • LWS: produce pigments sensitive to long wavelengths, yellow-red, 560-770nm.

Explanation:

Photoreceptor proteins are light-sensitive proteins that mediate light-induced signal transduction, thus they are involved in the sensing and response to light in a variety of organisms.

The photoreceptor proteins are classified based on the chemical structure of the chromophores involved, the light absorption and on the protein sequence.

This photoreceptor proteins are located at the cone photoreceptor cells and are responsible of photopic vision.

For scotopic vision, rhodopsin is responsible. Rhodopsins are the visual pigments (visual purple) of the rod photoreceptor cell in the retina. They are responsible of human vision in dim light, as it contains a sensory protein that converts light into an electric signal.  

3 0
3 years ago
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