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alexira [117]
2 years ago
7

WHAT CAUSE CHROMOSAL MUTATIONS?

Health
2 answers:
melamori03 [73]2 years ago
8 0
Mutations arise spontaneously at low frequency owing to the chemical instability of purine and pyrimidine bases and to errors during DNA replication. Natural exposure of an organism to certain environmental factors, such as ultraviolet light and chemical carcinogens (e.g., aflatoxin B1), also can cause mutations.
natka813 [3]2 years ago
7 0

Answer:

Mutations

Explanation:

A gene mutation is a permanent change in the DNA sequence of a gene. Mutations can occur in a single base pair or in a large segment of a chromosome and even span multiple genes. Mutations can result from endogenous (occurring during DNA replication) or exogenous (environmental) factors.

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Should you make sure the scener is clear before you help ?
valentina_108 [34]

Answer:

true

Explanation:

you do not want to put yourself in any danger

7 0
3 years ago
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A canal that’s approximately five feet and extends from the ileum to the anus is called what
nasty-shy [4]
D. Large intestines 

Hope this helps :)
4 0
3 years ago
which of these would be the best source of date about your current diet. A. Your food journal B. The opinions your friends C. Th
Morgarella [4.7K]

The answer to your question is: A) Your food journal.

It's best to use a food journal to keep track of the things you've eaten, and how much calories you've eaten throughout that day. Using a journal can help you when your on a diet so you can keep track of what you've been eating.

I hope this helps you!

Have a wonderful day!

-LizzyIsTheQueen

6 0
3 years ago
When the number of pathogens that can damage cells and cause them to burst increases, this is know as:
zhuklara [117]

Answer:

D. Immune response

Explanation:

An immune response is defined as any reaction that occurs within a host when its body recognizes and defends itself against pathogenic microorganisms (e.g., viruses, bacteria, protists, etc) and/or chemical compounds that look to be foreign and harmful to the body. When the number of detected pathogenic microorganisms increases, the immune system in the host responds by producing cells that attack them or by producing proteins (i.e., antibodies) that destroy the harmful substances. A substance capable of triggering an immune response is known as an antigen (e.g., a structural protein of a pathogenic virus). There are two distinct types of immune responses: 1-innate immune responses, where the body mounts a response immediately without requiring a previous contact with the harmful antigen and does not retain a memory of previous responses; and 2- adaptive immune responses that only occur after exposure to an antigen, these responses are slower but they are specific and produce immunological memory.

3 0
2 years ago
What would happen if you fasted for a week
AlekseyPX

Answer:

Explanation: One thing is for sure: you would have a tremendous amount of weight loss. Water weight burns faster than that of the weight from what you eat. Without supplementing your body with other sources such as protein, calcium, sodium, and so forth, your body would start to consume itself, due to a lack of proper nourishment. On a psychological scale, it would cause your mind to have a whole lot of hallucinations, and anemia.

8 0
3 years ago
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