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Oksanka [162]
3 years ago
5

PLEASE ANSWER ASAP!! WILL GIVE 15 POINTS!! How do genes get “turned on” and “turned off”?

Biology
2 answers:
yKpoI14uk [10]3 years ago
8 0

Answer:with an activator protein

Or when certain receptors are turned on

Explanation:

hammer [34]3 years ago
6 0

Answer:

Explanation:

A gene can be turned on or off by environmental factors or from other cells that activate proteins known as transcription factors.

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Oxygen is so pervasive in the environment that it would be very difficult for a microbe to always avoid physical contact with it
IgorLugansk [536]
If it cannot avoid it, it just find a mechanism to use oxygen and make it less harmful to itself. This is how the process of cellular respiration may have evolved
8 0
2 years ago
What aspect of chromosome behavior most clearly accounts for Mendel's law of segregation?
svetlana [45]

The given question is incomplete as the group of choices lack the correct answer, however, the correct group of choices are as follows:

A. Movement of sister chromatids to opposite poles at anaphase II of meiosis.

B. Movement of homologous chromosomes to opposite poles at anaphase I of meiosis.

C. Crossing over between homologous chromosomes during prophase I of meiosis.

D.  Replication of chromosomes prior to meiosis.

E. Independent alignment of different homologous pairs on the metaphase I spindle.

Answer:

The correct answer is :  Movement of homologous chromosomes to opposite poles at anaphase I of meiosis.

Explanation:

The Mendel's law of segregation says that during formation of gametes the copies of genes segregate from each other so each gamete has equal and only one allele of the gene.

This behavior of homologous chromosome can be seen in anaphase I in meiosis, responsible for the segregation of copies of allele into different copies.

Thus, the correct answer is :  Movement of homologous chromosomes to opposite poles at anaphase I of meiosis.

7 0
3 years ago
Organisms that obtain energy by eating nutrients that make up other organisms are called:
balu736 [363]

The organisms that obtain energy by eating nutrients that make up other organisms are called Hetertrophs. The correct answer between all the choices given is the second choice or letter B. I am hoping that this answer has satisfied your query about and it will be able to help you, and if you’d like, feel free to ask another question.

3 0
3 years ago
What process do the arrows for oxygen going in and water coming out represent in the Figure 9–2 diagram of the mitochondria?
quester [9]
Electron transport or A
7 0
3 years ago
Which of the following diagrams shows a pure substance that is composed of only individual atoms and not molecules?
Lemur [1.5K]

Answer:Argon Gas maybe?

Explanation:Just got it right lol

8 0
3 years ago
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