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vodka [1.7K]
2 years ago
12

Three ways you can identify pairs of homologous chromosomes?

Biology
1 answer:
diamong [38]2 years ago
6 0

An organism inherits one chromosome of a homologous pair from the maternal parent and the other chromosome from the paternal parent. Although both chromosomes possess the same genes and loci, they may feature different alleles, or versions, of those genes. For example, a maternally inherited chromosome in a pea plant may contain an allele that codes for a green pod, while the allele for a yellow pod may be found at the same location on the paternally inherited homologous chromosome. The differences between alleles of a gene are determined by deviations in their DNA sequences.

A diploid organism possesses two copies of each type of chromosome, with the potential exception of the sex chromosomes, in each of its cells. Humans, for example, have a total of 46 chromosomes in their cells. Human females have two copies of the sex chromosome called the X chromosome, so they have 23 sets of homologous chromosomes. Human males, however, possess one X sex chromosome and one Y sex chromosome, so they have 22 sets of homologous chromosomes, plus two sex chromosomes that are not homologous.
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How is a brain injury classified?
faltersainse [42]

Answer:

As an injury of the central nervous system.

Explanation:

Peripheral nervous system is the nervous system outside the brain and spinal cord. The central nervous system consists of the brain and spinal cord. The autonomic nervous system is a control system that acts largely unconsciously and regulates bodily functions, such as the heart rate, digestion, respiratory rate, and more. The somatic nervous system is the part of the peripheral nervous system associated with the voluntary control of body movements via skeletal muscles. Therefore, central nervous system is your answer!

Hope this helps :3

6 0
3 years ago
Read 2 more answers
How do cigarettes and radiation cause cancer? View Available Hint(s) How do cigarettes and radiation cause cancer? by destroying
blagie [28]

Answer: B.  by toxic chemicals (in smoke) or radiation that can damage the DNA in cells.

Explanation:

The carcinogens presents in cigerates covalently bind to DNA and form DNA adducts which results into miscoding (e.g., insertion of the wrong base) during replication of DNA and this genetic mutation causes uncontrolled cellular growth which causes cancer.

Ionising radiation including X-rays, radioactive particles, and gamma rays,can cause cancer by damaging DNA. high-energy radiation damages DNA and cause genetic mutation same as cigerates and causes cancer.

Both toxic chemicals (in smoke) or radiation damages DNA inthe cells which leads to cancer.

Hence, the correct option is B.

3 0
3 years ago
C6H1206+O2 + some energy—> 6CO2 + 6H2O + ATP + heat is the chemical equation for what
Effectus [21]

Answer:

prob cellular respiration

Explanation

the first part is sugar and oxygen which would result in the second part, carbon dioxide, water, heat, and usable energy. aka reactants to the products

5 0
3 years ago
Which of the following is NOT part of the cell theory?
evablogger [386]

Answer:

I think it is, Cells are the basic unit of life.

I hope it helps you....

5 0
3 years ago
Help it’s due at 11:59
Nonamiya [84]

Answer:

tt

Explanation:

Firstly, look at the oldest female shape. It would be a circle since that is female and which circle, would be the oldest one. In line one. Since the circle is white, the gene has not been carried so it must be reccessive.

tt because it is the only allele pair that would give you the gene without obtaining that trait, meaning it is reccessive.

So it would make sense that tt is the choice.

6 0
3 years ago
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