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Serggg [28]
3 years ago
13

What is a change in a DNA sequence called

Biology
1 answer:
Shkiper50 [21]3 years ago
6 0
Mutation. this happens when a cell copies its DNA to divide. its more common than you may think, a "typo" occurs every 100, 000 or so nucleotides, thats about 120, 000 "typos" every time a cell divides. 
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is a recessive,hereditary disease that is life threatening because of overproduction mucus in vital organs such as the lungs
user100 [1]

The cystic fibrosis is a condition, in which the secretion of mucus in some vital organs such as lungs, pancreas, and stomach becomes sticky and thick.

This condition is caused by the inheritance of the recessive gene responsible for the development of the cystic fibrosis.

The thick and the sticky mucus gets lined up on the walls of the organ and causes the clogging of the tubes and the ducts, hence, instead of providing lubrication they act as clogging agent and causing major damage to some vital organs, especially, lungs and the pancreas.

5 0
3 years ago
In which process are the homologous chromosomes separated?<br><br> A. Meiosis<br><br> B. Mitosis
vovangra [49]

Answer:

A. Meiosis

Explanation:

Since Meiosis is the process of separating homologous chromosomes way from each other while Mitosis don't the answer will be A. Meiosis

Hope this helps!

6 0
3 years ago
Read 2 more answers
A cell has a 2% salt concentration. It is placed into a solution containing a 2% salt concentration.
omeli [17]

Answer:

Water will move into and out of the cell at the same rate, causing it to remain the same size.

Explanation:

Water will move into and out of the cell at the same rate, causing it to remain the same size due to the existence of similar concentrations on both sides of the semi-permeable membrane which includes both the cell and the surrounding solution creating an isotonic environment.

6 0
4 years ago
True or false: it is unethical to give placebos to a control group.
malfutka [58]
<span>False. In order to create a control group one must understand the baseline of what is happening. Therefore placebos are given in order to establish this control group. These control groups allow understanding of what an the actual experimental drug, in the case of clinical trials, can do.</span>
5 0
3 years ago
PLEASE HELP ASAP!!! WILL MARK BRAINLIEST!!!
Mice21 [21]
1: a) Cytokinesis

2: b) Prophase: Fibers form the mitotic spindle

3: It is the system that scientists use to name living organisms. It is beneficial to use this naming system because it is very precise and narrows it down to one specific organism. Another reason is because the roots used to make up one of the names can be compared to others, so you can see the relationship between two different organisms.

4: a) <span>Organisms once thought to be unrelated may be found to be related.

5: b) eliminating waste through the cell membrane.

I hope this helps you out.
</span>
8 0
3 years ago
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