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CaHeK987 [17]
2 years ago
11

The diagram shows an example of anaphase, which is a stage of mitosis, as well as anaphase I, which is a stage of meiosis. Note

that the diagram for anaphase I shows two pairs of homologous chromosomes, and that the chromosomes appear to align in two rows.
Which feature of anaphase I is determined randomly, meaning that it could occur normally in other ways than the diagram shows?

Biology
1 answer:
scoundrel [369]2 years ago
4 0

Answer:

D

Explanation:

The chromosomes can line up in a different order than shown. All of the other choices can not change.

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Select one organism from above and describe how it functions in the energy pyramid
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Li is interested in ways to maximize the vitamin content in his fresh fruits and vegetables. Which of the following practices sh
OlgaM077 [116]

Answer:

Use cooking methods that minimize/eliminate contact with water.

Explanation:

Vitamins are important nutrients found in fruits and vegetables. Vitamins can be easily leached out and it is therefore recommended that the vegetables should be consumed immediately after purchase or stored in an airtight container.

The use of cooking method that eliminate contact with water such as freezing, keeping in a close container will help retain the vitamins, reduce degradation rate and prevent it form been lost.

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2 years ago
Regulatory proteins typically contain sites that can bind to other proteins or small molecules. Through such binding interaction
nasty-shy [4]

Answer:

Regulatory sites e.g enhancers and silencers

Explanation:

Gene expression involves the synthesis of gene products usually proteins and RNA. However, a certain product might not be needed at all or in small quantity. Gene regulation mechanism is the process that makes this happen. Gene regulation is the mechanism that acts to induce or repress the expression of a gene.

Gene regulation involves controlling the rate and manner of gene expression which is achieved through a set of regulatory proteins called transcription factors. Transcription factors bind to specific regulatory nucleotide sequences and help to turn "on or off" specific genes in the DNA.

Transcription factors can either be ACTIVATORS or REPRESSORS depending on whether they boost or inhibit gene expression. The binding sites for these regulatory proteins called TRANSCRIPTION factors are the regulatory nucleotide sequences on the DNA called enhancers and silencers.

4 0
3 years ago
Explain the role of a hypothesis in a scientific investigation.
k0ka [10]

Answer:

A hypothesis is a testable proposition

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If the hypothesis is disproved through

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This system of careful, rigorous, and

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Hope it helps!

4 0
2 years ago
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