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Eva8 [605]
3 years ago
6

Describe the structure of nucleus.​

Biology
1 answer:
lukranit [14]3 years ago
5 0
<h2>✿━━━━@♥ℳg━━━━✿</h2><h2 /><h2>\boxed{Explained\:Answer}</h2><h2>______________________________</h2><h2 /><h2>✿━━━━@♥ℳg━━━━✿</h2><h2 /><h2>Nuclear membrane</h2>

The nucleus is enclosed by a double layered cellular membrane called the nuclear membrane.

<h2>Nucleoplasm</h2>

The nucleus contains a nuclear sap, enclosed by the nuclear envelope, which is known as the nucleoplasm. This holds the nucleoli and suspends the chromatins.

<h2>Nucleolus</h2>

The nucleolus is a sub-organelle present inside the nucleus. It can be observed as a dark spot under the microscope.

Nucleoli are made up of proteins, ribosomal RNA (rRNA), and ribosomal DNA (rDNA).

<h2>Chromatin network</h2>

DNA gets associated with protein molecules to form chromatins.

Chromatins are present in the nucleoplasm.

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Which part of the photosynthesis cycle does not require sunlight?
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Explanation:-

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brainliest if you mind thanks

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4 years ago
Explain how the theory of evolution is supported. (list and describe each evidence)
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DNA polymerase III can synthesize new DNA at a rate of 1000 bases per second. The genome of Escherichia coli is about 4,600,000
Murrr4er [49]

Answer:

1.27 hour or 77 minutes.

Explanation:

In the given question it is provided that:

1. DNA polymerase III synthesizes new DNA at a rate of- 1000 bases/sec

2. The genome of E.coli has- 4,600,000 base pairs

To calculate the time required for replication:

Total base pairs/ speed of enzyme

= 4600000/1000

= 4600 seconds

= 4600/3600   (1 hour= 3600 seconds)

= 1.27 hour or 77 minutes.

Thus, 1.27 hour or 77 minutes is correct.

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