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lianna [129]
3 years ago
9

What can cause changes in the traits of a population?

Biology
1 answer:
Oksana_A [137]3 years ago
7 0
Interracial mixing or breeding

Mutations or physical and mental disorders

environment- pollution, predatorism,

society- norms regulations laws

religion- beliefs morals ethics

Please vote my answer branliest! Thanks.
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What would most likely happen to a person who is not getting enough essential animosity acids in his or her diet
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Probably nothing. There are a lot of vegetarians in California and Australia and Oceania and Asia (mostly Japan and India).

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Which explains the information needed to calculate speed and velocity?
m_a_m_a [10]

Velocity is a vector quantity which means it has both magnitude and direction means in order to calculate it another vector quantity is used which is displacement on the other hand speed is a scalar quantity.

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What are the characteristics of greenhouse
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Answer:

Access. A basic feature of any greenhouse is access. ...

Vents. One of the first greenhouse features necessary is a means of controlling the climate – most importantly, venting excess heat. ...

Fans. Fans inside a greenhouse are necessary for two basic functions. ...

Rollup Sides. ...

Heaters. ...

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Electricity.

Explanation:

theres more but these are the important ones .

5 0
3 years ago
Why is embryology considered evidence of evolution
suter [353]
The study of one type of evidence of evolution is called embryology, the study of embryos. An embryo is an unborn (or unhatched) animal or human young in its earliest phases. Embryos of many different kinds of animals: mammals, birds, reptiles, fish, etc. look very similar and it is often difficult to tell them apart.
8 0
2 years ago
Normally, this region is imprinted in the sperm, but not the egg. This means that the DNA on the ____________ copy of the chromo
Nostrana [21]

Answer: The DNA on the paternal copy of the chromosome will be methylated at the imprinting center, while the DNA on the maternal copy of the chromosome will not be methylated in this region.

Explanation:

Chromosomes are DNA structures associated with proteins such as histones. They are found in the nucleus of cells and contain genetic information for the development and functioning of an organism. Human beings are diploid, meaning that they possess two copies of each of the 23 chromosomes (a total of 46).

Gametes, which are sex cells such as the sperm (produced by the male) and the egg (produced by the female) that are haploid. This means that they possess only one chromosome of each pair. During fertilization, a male gamete fuses with a female gamete to generate a zygote, which will give rise to a new human being. <u>This new individual will possess half of the genetic material from its father and half from its mother. Thus having a total of 46 chromosomes, 23 from each parent</u>.

Genetic imprinting modulates gene expression by chemical modification of DNA and/or modification of chromatin structure. Often, genetic imprinting causes a gene to be expressed only on the chromosome inherited from one of the parents. One example of imprinting is DNA methylation, which is a process by which methyl groups are added to DNA. <u>Methylation modifies DNA function when found in the promoter gene, repressing gene transcription. This means that a methylated gene will not be expressed</u>, that is, it will not produce a protein encoded by that gene. So, if a region of DNA is imprinted in the sperm cell, the paternal chromosome inherited from this sperm will be methylated in the genes of the offspring. And the offspring will only express the maternal copy inherited, which will not be methylated.

6 0
2 years ago
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