WHAT CAUSE CHROMOSAL MUTATIONS?

2 answers:

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.

You might be interested in

When a person has an alcoholic beverage, what percent of the alcohol contained is absorbed by the stomach?

geniusboy [140]

A.
About 20% (:

Good Luck!

3 0

2 years ago

Read 2 more answers

. John did an experiment on potato. He peeled a potato and added few drops of iodine to it. He noticed that the brown colour sol

Butoxors [25]

Answer:

starch

Explanation:

starch turns blue black in the presence of idonine

6 0

3 years ago

What is BMR and how it affects your calorie needs

miv72 [106K]

Answer:

Your BMR: This stands for the basal metabolic rate that actually represents the minimal number of calories that your body burns while resting. This is the absolute bare minimum that you must consume so that your body can burn these calories on breathing, digesting food, and other involuntary actions.

Explanation:

7 0

3 years ago

Read 2 more answers

Need asap im timed

romanna [79]

ryan is the right awnser

7 0

3 years ago

Read 2 more answers

Explain how th e respiratory and circulatory systems work together to transport nutrients.

faust18 [17]

Answer:The respiratory and circulatory systems bring oxygen and nutrients to the cells. The respiratory and circulatory systems work together to maintain homeostasis. The respiratory system moves gases into and out of the blood. The lungs contain the bronchi, bronchioles, and alveoli.

Explanation:

5 0

3 years ago