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spin [16.1K]
3 years ago
15

How many different populations live in the pond?​

Biology
2 answers:
Yuri [45]3 years ago
8 0

Answer:

It depends on the owners choice of fish, plus all the different types of bugs, insects, reptiles and crawfish.

ioda3 years ago
6 0

Answer:

Depends on the environment, climate and etc

Explanation:

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A gene on human chromosome 15 is expressed throughout the body. However, in the brain, only the maternal copy of the gene is exp
lord [1]

Answer:

C) Through genomic imprinting, methylation regulates expression of the paternal copy of the gene in the brain.

Explanation:

The pattern of gene expression wherein either paternal or maternal gene is expressed in specific cells while the other one is prevented from expression is known as genomic imprinting.

In the given example, the maternal copy of the gene on chromosome 15 is expressed in brain cells while its paternal copy is not expressed in these cells. Hence, the pattern of expression of this gene is regulated through genome imprinting. One of the mechanism is methylation of cytidine residues of CpG islands of the DNA that are more frequently present within promoters of the genes.

When the cytidine residues of these sequences are methylated into 5-methylcytidine, the transcription factors do not bind to these promoters preventing the expression of these genes.

Hence, methylation of cytidine residue in CpG islands of the promoters of the gene present on chromosome 15 could have silenced its expression in brain cells.

6 0
3 years ago
if a person has a genetic mutation which renders them incapable of making chemoreceptors, which sense would be affected?
Nadusha1986 [10]

Answer:

The answer is : cornea !!

4 0
1 year ago
Deforestation is a source of anthropogenic, or human caused carbon dioxide emissions because cannot consume carbon dioxide molec
Roman55 [17]

Answer:

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Explanation:

8 0
2 years ago
Describe the relationship between evolution, genetic mutation, and the environment. ​
Nadusha1986 [10]

Answer:

The meaningful differences between organisms in a population are genetic. Variations in the genome of members of a population arise through mutation. Occasionally, a mutation occurs in an individual that is beneficial, that helps that organism be better able to survive and repoduce in its current environment.

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2 years ago
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