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Misha Larkins [42]
3 years ago
8

List five examples of mutations. Then classify each as harmful, helpful and neutral and explain your reasoning.

Biology
1 answer:
Soloha48 [4]3 years ago
4 0

Answer:

1) sickle cell anemia: Sickle cell anemia is caused due to a point mutation by which a change in the nucleotide causes the code for producing the amino acid valine instead of the amino acid glutamic acid. It is a harmful mutation.

2) Klinefelter’s Calicos: Better known as the Klinefelter’s Syndrome, Klinefelter’s Calicos is a type of genetic mutation in which the person has the pattern of XXY for sex chromosomes i.e the person has an extra X chromosome. It is a harmful mutation.

3) Colour blindness: It is a sex linked mutation caused by two genes coding for the sight of red and green colour on the X chromosome. It is a harmful mutation.

4) Lactase persistence: A mutation allowed the humans to produce lactase enzyme as a result of breast feeding. This is an example of beneficial mutation.

5) HIV resistance: A 32 base pair sequence change in CCR5 helps humans to get resistant against HIV. it is a beneficial mutation.

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sergey [27]

Answer:

C

Explanation:

A toboggan is a simple sled traditionally used by children. It is well adapted to sliding down open slopes, where its large surface rides easily on loose, fluffy snow.

3 0
2 years ago
The Corpus Callosum does what? *
Rasek [7]

Answer:

Option 1: Connect left and right hemisphere

Explanation:

The function of Corpus Callosum is to establish communication between the left and right hemispheres of the brain.

5 0
3 years ago
Manifestations of osteoarthritis include ( Select all that apply.) nodules on joints of the hands. crepitus with joint movement.
fiasKO [112]

Answer:

All options are correct, that is, they would all be correct for osteoarthritis.

This disease is characterized by being very painful at the joint level, it is degenerative, and mobility decreases over time.

Explanation:

Osteoarthritis is a pathology that is based on the fegenerative destruction of the joints, generating edema and loss of function, that is why it is pain.

The pain is very intense and very marked, that is why it is treated with immunosuppressive drugs and analgesics. (In addition to kinesiology and physiotherapy).

This disease decreases the functional unit and the joint space, generating possible ankylosis, pseudoarthrosis, elimination of lubricating fluid from joints and nodular structures. These nodular structures tend to be more common in the hands and are called by professionals as "drum fingers".

5 0
3 years ago
what are the morphological chemical function and similarities different between lysosomes and peroxisome​
bearhunter [10]

Answer/explanation:

Differences: lysosomes have digestive enzymes (hydrolases) that break substances to be digested into small molecules; peroxisomes contain enzymes that degrade mainly long-chained fatty acids and amino acids and that inactivate toxic agents including ethanol; within peroxisomes there is the enzyme catalase, responsibal

5 0
3 years ago
How does a vaccination make someone immune? Please can you include these words:
Andrews [41]
A vaccine uses a live pathogen that is too weak to make you sick. Once it enters your body you defeat it easily. Now that yur body is familiar with it your body can fight off the disease in the future.
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