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Whitepunk [10]
3 years ago
15

which one of the statements describes an event that takes place during gene regulation at the level of the chromosome?

Biology
1 answer:
NISA [10]3 years ago
8 0
Chromatin is remodeled and nucleosomes are repositioned, thereby making specific regions of the DNA available for transcription
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Shifting biomes could have consequences for the regions in which the shifts occur. Read the two cases below and decide which con
Nata [24]

Answer:

increased risk of wildfires- both

local economy suffers- Case 1

carbon storage decreases - Case 2

agricultural production decreases - Case 1

carbon storage increases -  Case 1

disease vector range changes - Case 2

decreased water availability - Case 1

local economy thrives - Case 2

species range changes - Case 2

Explanation:

Fires are common to  taiga biomes. Owing to the fact that the biome in case 1 changed from an agricultural community to a grassland and subsequently to a desert, agricultural productivity will decrease, the local economy will suffer, water availability is decreased and local economy suffers as a consequence of desertification.

On the other hand, in case 2, the diseases vector range as well as species range changes due to the change in the species of foxes from Artic foxes to red foxes that carry rabies. Carbon storage decreases as the taiga biome acts as a carbon sink. The local economy thrives due to timber production.

Lastly, species range changes both in case 1 and case 2 since there is a loss of species. Species range is the area where a particular species can be found during its lifetime. Certainly, the range of area where species are found changed in cases 1 and 2.

8 0
3 years ago
In any DNA molecule, the number of guanine bases will:______.
lubasha [3.4K]

Answer:

E

Explanation:

In DNA molecule, the number of guanine bases will always be equal to the number of cytosine bases. Genuine make a triple hydrogen bond with cytosine. That's why the number of guanine bases is equal to cytosine bases.

6 0
3 years ago
The metabolic reaction that occurs in the cells of all living organisms is:
Oduvanchick [21]

Answer: The Answer is A.) Burning of fossil fuels

Explanation:

4 0
3 years ago
Read 2 more answers
How do scientists most often gain new knowledge
lions [1.4K]

Answer:

Scientists mostly gain new knowledge through direct observation and applying the scientific method. They would start with a hypothesis and test it, then change it or confirm it. Others would test their confirmation from one point, while the third group would test what the second said. And so on and so forth.

Explanation:

3 0
3 years ago
Gene expression in eukaryotes can be regulated at various levels. Certain mutations in flies may cause them to develop an extra
vekshin1
Hox genes are also called Homeotic genes.  In which they act as dictators on specific areas of an organism's body on when or where it should be developed. When these genes are overactivated or inactivated it may cause genetic disorders.
3 0
3 years ago
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