Answer:In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Chromosomes are not visible in the cell’s nucleus—not even under a microscope—when the cell is not dividing. However, the DNA that makes up chromosomes becomes more tightly packed during cell division and is then visible under a microscope. Most of what researchers know about chromosomes was learned by observing chromosomes during cell division.
Each chromosome has a constriction point called the centromere, which divides the chromosome into two sections, or “arms.” The short arm of the chromosome is labeled the “p arm.” The long arm of the chromosome is labeled the “q arm.” The location of the centromere on each chromosome gives the chromosome its characteristic shape, and can be used to help describe the location of specific genes.
Crossing two true breeding parents with opposite parents is the key:
Assume W is straight wing and w is curly.
Then you are crossing WW with ww
This will result in ALL Ww as offspring - so all straight offspring
If you then cross Ww x Ww you end up with a mix of
WW (1), Ww (2) and ww (1) - so a mix of straight and curly
Answer:
P generation has straight wings and curly wings
F1 has all straight wings
F2 has straight wings and curly wings
If mitotic cell division is the only way a particular species of single-celled organism can reproduce, it is most likely that the rate of evolution in this species is slower than in one that reproduces sexually. This is asexual reproduction, which causes mutations in a population to accumulate and combine more slowly than sexual reproduction in a cell line, as the mutations would have to arise multiple times in one line, rather than a few separate times and then be allowed to combine sexually for the descendants to have those traits.
3 is a
7 is b hope I helped
Pain due to an injury can tell about the organ affected. The pain in the right shoulder refers to an injury of the liver organ, Thus, option d is correct.
<h3>What are abdominal and genitourinary injuries?</h3>
Abdominal and genitourinary injuries are damages to the organs and tissues of the digestive and excretory system that mostly affects the liver, kidneys, spleen, etc.
The liver is an organ located in the right upper abdomen involved in various functions and bodily activities. Shoulder pains are associated with liver injuries as inflammation and discomfort affect the neck and shoulder region.
Therefore, option d. the liver is the affected organ.
Learn more about liver, here:
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Your question is incomplete, but most probably your full question was, You should have an index of suspicion that a patient with pain referred to the right shoulder has an injury to which organ?
- Bladder
- Intestine
- Kidney
- Liver
