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PIT_PIT [208]
3 years ago
14

What molecule in the nucleus controls the copying of DNA ?

Biology
2 answers:
KiRa [710]3 years ago
7 0

Answer:

RNA

Explanation:

A chemical called messenger RNA (mRNA) is made in the nucleus and carries a copy of the DNA base sequence of a specific gene to the cytoplasm

hoa [83]3 years ago
4 0

Answer:

Explanation:Within the nucleus are threads of chromatin composed of DNA and associated proteins. Along the chromatin threads, the DNA is wrapped around a set of histone proteins. A nucleosome is a single, wrapped DNA-histone complex.

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Think of a change that can occur to an ecosystem and the populations that live in that area. In what ways can the different popu
Alex73 [517]

Answer:

There are several environmental factors that causes changes in the ecosystem and the population of that area such as invasive species, extreme weather, land use change, pollution and disease.

Lets take invasive species as environmental factor. Introduction of invasive species can cause a huge change in the ecosystem and affects the native population in that area. it increases the competition for food resources and decreases the survival rate of their preys.

For example: Water hyacinth (Eichhornia crassipes). It is an invasive plant species that has very bad impact of native population as well as other population, like it reduces biological diversity, oxygen loss, decreased phytoplankton productivity,  eliminate plants that animals use for nesting, and alter animal communities by blocking access to the water.

Thus invasive population can affect population by reducing biodiversity, water shortages, decreasing availability and quality of key natural resources, disturb the food chain and can cause natural calamities.

Invasive species affect the resources that native species are using and that decreases the carrying capacity of the native population as it disturbs the whole food chain.

3 0
3 years ago
hypothesize a mechanism to explain how tissues respond to insulin in different ways, even tisses that have the same amount of re
soldi70 [24.7K]
<span>The major effects of insulin on muscle and adipose tissue are: (1) Carbohydrate metabolism: (a) it increases the rate of glucose transport across the cell membrane, (b) it increases the rate of glycolysis by increasing hexokinase and 6-phosphofructokinase activity, (c) it stimulates the rate of glycogen synthesis and decreases the rate of glycogen breakdown. (2) Lipid metabolism: (a) it decreases the rate of lipolysis in adipose tissue and hence lowers the plasma fatty acid level, (b) it stimulates fatty acid and triacylglycerol synthesis in tissues, (c) it increases the uptake of triglycerides from the blood into adipose tissue and muscle, (d) it decreases the rate of fatty acid oxidation in muscle and liver. (3) Protein metabolism: (a) it increases the rate of transport of some amino acids into tissues, (b) it increases the rate of protein synthesis in muscle, adipose tissue, liver, and other tissues, (c) it decreases the rate of protein degradation in muscle (and perhaps other tissues). These insulin effects serve to encourage the synthesis of carbohydrate, fat and protein, therefore, insulin can be considered to be an anabolic hormone.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

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4 0
4 years ago
Read 2 more answers
Write the function of synaps​
vekshin1

Answer:

The function of synapse is to transmit the electrical impulses from one neuron to other.

Explanation:

hope it help goodluck:)

6 0
3 years ago
Read 2 more answers
suppose a person has a small intestine that has fewer villi than normal.would the person most likely be overweight or underweigh
LenKa [72]
<span>The person who has a small intestine that has fewer villi than normal would most likely be u</span>nderweight. The villi of the small intestines are the small structures that do the absorbing of the nutrients. Having less of these structures, less nutrients are absorbed and the person is more likely to be malnourished.
3 0
3 years ago
What molecule carries genetic information?
Aleksandr-060686 [28]

DNA (or deoxyribonucleic acid) is the molecule that carries the genetic information in all cellular forms of life and some viruses.  Source-

DNA, Genes and Chromosomes — University of Leicester

www2.le.ac.uk/projects/vgec/highereducation/topics/dna-genes-chromosomes

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