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tester [92]
3 years ago
9

What is the difference between a promoter, an activator, and a repressor?

Biology
1 answer:
Readme [11.4K]3 years ago
8 0

Answer:

Promoter:

Promoter may be defined as the region of DNA that are responsible for the transcription initiation of a gene. Promoters are located on the upstream region of DNA. RNA polymerase binds to the site of promoter.

Activator:

Activators are the factors that are responsible for the activation of transcription initiation. These factors helps in the binding of polymerase with the promoter region.

Repressor:

Repressors are the factors that decreases the rate of transcription. The presence of a repressor inhibits the binding of the RNA polymerase with the promoter.

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B) Gonadotropin

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7 0
3 years ago
What is not included in the female reproductive system quizlet?.
evablogger [386]

The mammary glands are not included in female reproductive organs.

They are glandular organ located on the chest. They are made up of connective tissue, fat, and tissue that contains the glands that can make milk. They are also called breast.

The mammary glands are not included in female reproductive organs.

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They also secrete female sex hormones like progesterone and estrogen.

The female reproductive system consists of paired ovaries and oviducts, uterus, vagina, ureters, accessory glands, and external genital organs.

To learn more about mammary glands visit the link- brainly.com/question/14216592

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3 0
2 years ago
2. If nearly 79% of the atmosphere is made of nitrogen, how could there be a shortage of nitrogen in soil?
Margaret [11]
Nitrogen must be converted into nitrates before organisms can use it. If soil lacks nitrogen fixing bacteria, then it has few nitrates for the plants to take in.
3 0
3 years ago
Can someone explain? thank you
garri49 [273]

Answer:

Introduction In ecology and biology, abiotic components are non-living chemical and physical factors in the environment which affect ecosystems. Biotic describes a living component of an ecosystem; for example organisms, such as plants and animals. Examples Water, light, wind, soil, humidity, minerals, gases.

Explanation:

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Which of the following functional groups has acidic properties (acts like an acid) in an aqueous solution?
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