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FinnZ [79.3K]
2 years ago
10

How many neurons are found in the brain?

Biology
1 answer:
Bogdan [553]2 years ago
4 0

Answer:

there are 86 billion neurons in the human brain

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A competent bacterial strain with genes a, b, and c is transformed by a donor bacterial fragment. Cotransformation frequencies f
mina [271]

Answer:

a) Genes b and c are farthest apart.

Explanation:

Transformation occurs when a competent bacteria cell takes up genetic material from the environment. Usually a donor cell donates its gene fragment  which is then incorporated into the chromosome or plasmid of recipient bacterial cell.

Cotransformation occurs when two genes are taken up together by the recipient. The closer the genes lie to each other, more are the chances of them being taken up together. Contransformation frequency will be higher if two genes are close to each other. Here, cotransformation frequencies between three genes are given. Amongst them, the lowest frequency is 0.0064% which is present between gene b and c. Hence, gene b and c are the farthest apart.

4 0
3 years ago
During endocytosis, cells _____. expel what they don't need take in what they need shrink due to loss of water
AysviL [449]
Actively transport molecules across the cell membrane
8 0
3 years ago
The specialized cells involved in sexual reproduction are called: zygotes
VARVARA [1.3K]

The correct answer would be gametes

5 0
3 years ago
Read 2 more answers
What is the process where organisms that are better suited to their environment reproduce and pass on their genes more successfu
maxonik [38]

Answer:

Natural selection

Explanation:

Natural populations have variations. Organisms of a population have various genetic traits. Some of these genetic variations make the organisms better suited to the prevailing environmental conditions. These organisms are more likely to produce more progeny. Over generations, the frequency of the beneficial genetic traits increases in the population due to the higher reproductive success of the organisms with these genetic traits.

This process of differential fitness of organisms of a population where the organisms with adaptive genetic traits have survival and reproductive benefits is called natural selection.

8 0
3 years ago
Read 2 more answers
What gene has been called the "guardian angel of the genome?"?
Ganezh [65]
The correct answer is p53 gene.
This is one of the most important genes in our bodies, which is evident by its nickname of the "guardian angel of the genome." It is called that way because it protects our cells from becoming cancerous. It also activates many other genes. 
7 0
3 years ago
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