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3 years ago

What happens when cells are mutated?

Biology

1 answer:

choli [55]3 years ago

4 0

Answer:

When cells are mutated, a permanent variation happens in the DNA sequence of the cell that can disrupt its normal development or cause medical condition like genetic disorders, cancers etc.

Explanation:

A cell mutation occurs when a permanent variation happens in the DNA sequence of the cell, which makes up the gene. It can occur during the DNA replication phase in the cell division process or as a result of external factors such as radiation, inflammation, free radicals etc.

The genes help in the production of proteins that have an important role in the various functions of the body. Mutations can result in the absence of some proteins in the body or cause the proteins to malfunction. Thus it can disrupt normal development or cause medical condition like genetic disorders, cancers etc.

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In humans, the allele for dimples (D) is dominant to the allele for no dimples (d). At another gene locus, the allele for broad

Inga [223]

Answer:

Explanation:

As given, Allele for dimples(D) is dominant over alleles for no dimples (d), so D is dominant over d.

Allele for broad eyebrows (B) is dominant over allele for slender eyebrows (b), so B is dominant over b.

A man heterozygous for both traits ( DdBb) marries a women who has no dimple and heterozygous fro eyebrow (ddBb)

So cross is = DdBb × ddBb

1). Genotype of the man is DdBb.

2). Genotype of the woman is ddBb.

3). Genotype of the gametes produced by the man are DB, Db, dB and db.

4). Genotype of the gametes produced by the woman are dB and db.

5). Probability that their first child will have dimples 50% or 1/2

6). Probability that there first child will have both dimples as well as slender eyebrows 1/8

6 0

3 years ago

Why is a parent usually a better match for transplanted tissue to a donor than a random individual of the same species?

s344n2d4d5 [400]

Answer: For decreased chances of rejection

Explanation:

The three higly polymorphic MHC 1 genes in human beings are HLA-A, HLA-B and HLA-C.

These determine the compatibility of the organ or tissue in the recipient's body each by the help of many alleles that segregates in a population.

There are very less chances that a random chosen donor will match the a recipient six allele genotype.

This is the reason parent may be the best donor for organ transplantation or tissue transplantation.

7 0

4 years ago

Small, wandering cells that engulf cell debris and pathogens in the CNS are called

Marrrta [24]

Answer:

D. Microglia

Explanation:

Microglia are phagocytic, which means that they are cells that can engulf other cells and particles. Microglia protect the CNS by engulfing foreign particles and bacteria. They act also as a clean-up crew that help remove dead cells. They are found in both the brain and spinal cord, which make up the Central Nervous System, or the CNS.

3 0

3 years ago

Why is palmitic acid called a saturated fatty acid?

Sholpan [36]

Palmitic acid is considered a saturated fatty acid since it has no double bond in its structure and is solid at room temperature. It is a long-chain fatty acid with 16-Carbon backbone. It is typically found in fats and waxes such as olive oil and palm oil.

6 0

4 years ago

3 paragraph summary (I'll give brainlist if you do it correctly)

BARSIC [14]

Answer:

alright bet I got this

Explanation:

Have you ever wondered what can happen to those plastic bottles you toss away? How do they decompose? What happens to them? Its simple really, they get eaten! No, not by people of course they are eaten by a tiny critter called a wax worm. The wax worms earn their name because they are often found living in beehives where they eat the beeswax.

Wax worms much like mealworms are used to break down things that would normally be endangering to our environment. These seemingly useless little animals do a whole lot for our environment especially with the amount of waste we produce! They really are a tiny secret hero to todays pollution problem.

After quite a few studies scientists are still unsure on how was worms can breakdown plastic with their tiny bodies but they appreciate the work these little recyclers do. They have a lot of theories on how these worms do this one of the theories is that bacteria can break it down, another theory is that enzymes in the worms intestines break down plastics. Though scientists believe it will take a while to figure this out they enjoy studying and learning more about this tiny helper.

6 0

2 years ago

What happens when cells are mutated?​

What happens when cells are mutated?