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SOVA2 [1]
3 years ago
7

The following diagram shows a stage of a cell during mitosis. Two identical circles are joined in the middle and they have the n

ucleolus inside the nucleus in the center of the circles. ASAP PLEASE WILL GIVE BRAILIEST Which of the following happens to the cell during the stage shown in the diagram? The chromosomes are replicated. The chromosomes start to condense. The chromosomes line up in the middle. The chromosomes begin to uncoil and form chromatin
Biology
1 answer:
AURORKA [14]3 years ago
6 0

Answer:

The nucleus (plural, nuclei) houses the cell’s genetic material, or DNA, and is also the site of synthesis for ribosomes, the cellular machines that assemble proteins. Inside the nucleus, chromatin (DNA wrapped around proteins, described further below) is stored in a gel-like substance called nucleoplasm

Explanation:

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The principle of dominance is a
Brums [2.3K]

Answer:

The Law of Dominance says that when an organism is heterozygous for a trait (meaning it has two different alleles for that gene), the allele that is expressed is the dominant one. It is one of Mendel's laws of inheritance. Unfortunately, there's no easy way to just know if an allele will be dominant or recessive.

Explanation:

Hope this helps

-A Helping Friend (mark brainliest pls)

8 0
2 years ago
What is the determining factor for the transcription of structural genes of the trp operon?
padilas [110]

The right answer is 3. the availability of tryptophan in the environment

The TRP operon regulation depends on the availability of the tryptophan molecule (it depends if the cell need tryptophan or already has it).

There are two modes of regulation of the trp operon: Suppression and Mitigation

*Repression

The synthesis of operon mRNA is controlled by a repressor that blocks transcription when bound by tryptophan, which acts as a co-repressor.

The repressor, a 108 aa homodimer (ie 2 apo-repressor), has helix-turn-helix domains that interact with inverted repeats at the major groove of the operator, thus allowing its fixation.

In the absence of trp, the repressor is inactive and does not attach to the operator. The RNA polymerase can bind to the promoter and transcribe the trp E, D, C, B, A structural genes.

In the presence of trp, the repressor changes conformation and becomes active, so it binds to the operator, preventing RNA polymerase from accessing the promoter so transcription will not occur.

* The Attenuation

This is a premature termination of transcription that is a function of Trp concentration. It takes place at a late moment of transcription while regulation by repression is done during the initiation.

1st Case: Low Trp Rate, Continuous Transcription, → Formation of the Anti-attenuator in the absence of trp, and therefore the synthesis of tryptophan is continued.

2nd case: High rate of trp, stop transcription, → Formation of the attenuator in the presence of trp. This one will attenuate the synthesis of tryptophan.

4 0
2 years ago
Is it better to learn about animals through a book, or actually going to see them in real life?
Norma-Jean [14]

I think in real life because you get to see how they act and i have been on three trips i know that this is not related but I've been to Egypt and Italy and china and i am in 7th grade so ya. I think seeing animals and things in real life is the best thing to do overall.

6 0
2 years ago
What is the correct term for anthropology’s commitment to studying the entire picture of human life, including culture, biology,
jekas [21]

Holism.

Explanation:

Anthropology is the branch of scientific studies that deals with study of human development in terms of body structure, culture,social behavior and language.

Biological anthropology deals with the evolution of man on the basis of biological structures.

Cultural anthropology deals with the evolution of different culture and society.

Social anthropology deals with the evolution of various societies from the time when man was totally uncivilized.

Linguistic anthropology  deals with the study of evolution of languages.

In short anthropology deals with all the aspects of human beings. This commitment of anthropology to studying the entire picture of human life,including culture,biology,history and language is termed as Holism.

6 0
3 years ago
The picture shows a jar of honey<br><br> Which statement is correct about this food?
scoundrel [369]

Answer:

what picture?

Explanation:

?????????????????????????????????

3 0
2 years ago
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