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Vesnalui [34]
3 years ago
9

Nilai suhu reamur ke fahrenheit

Biology
1 answer:
balu736 [363]3 years ago
3 0
Nilai suhu reamur ke fahrenheit? What is tht
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Whether during mitosis or meiosis, sister chromatids are held together by proteins referred to as cohesions. Such molecules must
scoundrel [369]

Answer:

1. They must be removed before sister chromatids or homologous chromosomes can separate

Explanation:

During the S-phase of the cell cycle, not only does DNA have to be replicated, but also newly synthesized DNA molecules have to be connected with each other. This replicated DNA (sister chromatids) remain physically connected with each other from S phase until metaphase. This physical connection is called Sister chromatids cohesion.

Sister chromatid cohesion depends on COHESIN, a tripartite protein complex that forms a ring structure to hold sister chromatids together during mitosis and meiosis. Cohesin regulates the separation of sister chromatids during cell division, either mitosis or meiosis. This sister chromatid cohesion is essential for the biorientation of chromosomes on the mitotic or meiotic metaphase spindle, and is thus an essential prerequisite for chromosome segregation. Without the cohesion, sister chromatids would not be segregated symmetrically between the forming daughter cells, resulting in aneuploidy.

Cohesion is established during S-phase of DNA replication, and the cohesins hold the sister chromatid together after DNA replication until anaphase when the removal of cohesin leads to separation of sister chromatids (meiosis II and mitosis) and homologous chromosomes (meiosis I).

8 0
3 years ago
A. two DNA molecules containing the same genetic code as the original DNA molecule are produced.
PIT_PIT [208]

Answer:

i think its C sorry if I am wrong

4 0
2 years ago
T/F: Temperature changes can occur in both chemical and physical<br> changes. *<br> True<br> False
velikii [3]
True

it is possible for a change in temperature to happen in either of them
6 0
3 years ago
If genes are on different chromosomes, the law of independent assortment states that -
GaryK [48]

Answer:

Gene pairs segregate randomly and independently of each other.

Explanation:

Genes are the basic units of hereditary and are located on chromosomes. According to Gregor Mendel's law of independent assortment  which states that the alleles of two (or more) different genes are sorted into gametes independently of one another. This means that the allele a gamete receives for one gene does not influence the allele the same gamete receives for another gene.

For example, in a the pea plants used by Mendel in his studies, the genes for seed shape and flower color were inherited independent of each other by the offspring of the parent pea plants. Therefore, Mendel concluded that the inheritance of each trait was independent of the other.

6 0
2 years ago
What is DNA'S Function?
pychu [463]

DNA is necessary for the production of proteins as well as the regulation, metabolism, and reproduction of the cell.

Proteins help repair and build your body's tissues, coordinate bodily functions, and allow metabolic reactions to take place.

Structural, storage, hormonal, enzyme, etc.

Enzymes speed up the rate of a chemical reaction to help support life.

Lipases, amylase, lactase, deoxyribonuclease, etc.

3 0
2 years ago
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