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cluponka [151]
3 years ago
5

Identical copies of chromatin held together by cohesin at the centromere are called _____.

Biology
1 answer:
Amanda [17]3 years ago
7 0

Answer:

Sister chromatids.

Explanation:

Sister chromatids are the two identical halves of a chromosome that are held together at centromere with help of cohesin. DNA replication in the S phase of the cell cycle doubles the amount of DNA. The copies of the DNA formed during DNA replication are accommodated in sister chromatids. Hence, two sister chromatids of a chromosome carry the identical DNA helices and associated proteins.

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Which of the following is a trait that cannot be inherited through genetic information
Alchen [17]

Answer:

i think its B

Explanation:

5 0
3 years ago
PLEASE HELP ASAP IS I DON'T FINISH SOON I WONT GET TO HANG OUT WITH MY BEST FRIEND THIS WEEKEND!!!
Kaylis [27]
I'd say first question, "life changes over time".
Second question, "when there are physical similarities in the early stages of embryonic development, it suggests that each of the modern organisms once had a common ancestor".
Third, appendix.
Fourth, "they are evidence that all came from a common ancestor and that life changed over time for all these organisms to exist".
Fifth, "they all share at least 50% of the same DNA arrangement".

I might be a little late but hopefully this helps!
8 0
3 years ago
a. List two structures that are found in plant cells but are not found in animal cells. b. Provide the function (job) of each st
Lyrx [107]

Answer:

1. CELL WALL

2. CHLOROPLAST

Explanation:

1. Cell wall provide structural support and protection.

2. Chloroplast involved in photosynthesis to make glucose as food for plants cell.

7 0
3 years ago
In reading before a family trip, George found that the area they were traveling to was cold winter, hot summer, and most the lan
DedPeter [7]

Answer:

Explanation:

The biome would be the arctic tundra - as it states the weather is cool

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8 0
3 years ago
Why can't astronomers measure the parallax of a star that is a million light years away?
motikmotik

One of the methods used widely to calculate the distance of nearby or closer objects in astronomy is Parallax. The distance of the stars are usually expressed in light years but the unit of distance is parsec or parallax second.  

                                        1 Parsec = 3.26 light years

Astronomers are not able to measure the parallax of a star that is a million light years away because the star is too far and the distance with which the start appears to move is too less to be calculated accurately.

6 0
3 years ago
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