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V125BC [204]
2 years ago
7

Edmentum assessments

Biology
2 answers:
Juli2301 [7.4K]2 years ago
5 0
What is you talking about boaaa
zysi [14]2 years ago
3 0

Answer:

bruh

Explanation:

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Explain why meiosis cannot happen without mitosis.
Oksi-84 [34.3K]
The mechanism is straightforward: in Metaphase one of Meiosis, chromosomes line up in two lines, with homologous across from each other, which allows them to interact by crossing over. In Metaphase of Mitosis, the chromosomes are all lined up single file, so the homologous chromosomes cannot interact.
4 0
3 years ago
Give correct procedure of activities carried out in an experiment to investigate soil drainage​
tatiyna

Explanation:

These are 5 inverted cut bottles with different soils:

(Gravel, Sand, Loam, Clay, and Peat)

- The piece of cloth is tied at the mouth of the bottle to let out water at the same rate as the piece of cotton wool in the previous diagram.

- Soil that is very porous holds very little water and therefore allows too much water to pass through it.

- From the above, gravel has very large particles,it allows too much water to pass through it meaning it holds little water.

- Peat has more fine particles than Clay Soil, hence holds more water than Clay. It therefore allows very little water to pass through it.

5 0
3 years ago
What is used for camping
ozzi

Answer: a tent

Explanation:

Because that is what you use to sleep in

7 0
2 years ago
Which characterizes speciation in new areas, such as a recently formed island
kakasveta [241]
 Allopactric speciation<span> on </span>island<span> archipelagos. As the organisms move from </span>island<span> to </span>island,<span> rapid </span>speciation is observed because of difference in resource procurement more than just variation in environment.  Once these populations adapt to the environment, speciation rapidly occurs. 
6 0
3 years ago
Although the proteins that cause the E. coli chromosome to coil are not histones, what property would you expect them to share w
oksano4ka [1.4K]

Answer:

Positively charged ions

Explanation:

Histones are a group of proteins with a N-terminal end of an amino acid, that binds to the DNA in the nucleus helping it to condense into Chromatin. DNA wraps around a core of proteins to initially form the NUCLEOSO ME structure, which is the basic subunit of Chromatin. Each nucleosome is made up of DNA coiled around two copies (2) of proteins- H2A, H2B, H3 and H4, to form a set of eight proteins called histone octamer.

Due to the phosphate group (PO4-) embedded in the DNA molecule, they assume a negative charge. The positively charged ions of the N(C) terminal end of histones which arise from the amino acid group they contain allows it to bind tightly to negatively charged DNA i.e. the more positively and negatively charged the histone and DNA are respectively, the tighter the binding.

Due to this property, the proteins that binds to DNA in E.coli, should possess a positive charge in similarity to histones in eukaryotes.

5 0
3 years ago
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