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bekas [8.4K]
3 years ago
7

What is the general term for the layers of tough membranes that cover and protect the brain and spinal cord?

Biology
2 answers:
elixir [45]3 years ago
3 0
Meninges is <span>the general term for the layers of tough membranes that cover and protect the brain and spinal cord.</span>
strojnjashka [21]3 years ago
3 0
The answer is meninges.
Hope this helps! :)
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With a BB homozygote, what is the chance of a gamete having the B allele? The b allele?
Katyanochek1 [597]

Answer:

With a BB homozygous the probability of a gamete having the B allele is 100%, and no chance of having the b allele.

Explanation:

For a given trait, B represents the dominant allele, while b is the recessive one. The fact that an individual has a homozygous (dominant) form for this trait means that their homologous chromosomes contain the B allele and, therefore, his gametes can only have the B allele.

In the case that the individual was heterozygous, the chances of having a gamete with B or b would be 50:50.

Learn more:

Homologous chromosomes with heterozygous or homozygous alleles brainly.com/question/210889

5 0
3 years ago
After crossing over as shown below what would the sequence of genes be for each of the chromatids
SashulF [63]

The sequence of the genes will be ABCD, abCD and abCd, abcD.

Full question is attatched below.

<h3><u>Explanation:</u></h3>

The genes in the chromosomes are denoted as the sequence of genes present in a single chromatid of a particular chromosome. Thus, the genes here in this question are to be mentioned as ABCD and not as abab.

Crossing over is the process by which the homologous pair of chromosomes do pair up in the Prophase 1 of meiosis 1 division and they exchange a particular part of their DNA with each other. This leads to exchange of genes between the homologous chromosomes, which will form different gametes in near future. This brings about a variation between the offsprings of same individuals.

Here the d gene of the two chromosomes are getting exchanged.

So the chromosomes will become ABCD, abCD and abCd, abcD respectively.

8 0
3 years ago
The proteins and cell components of halophiles have remarkably high intracellular levels of _____, which helps to maintain their
sertanlavr [38]
Potassium is the answer
5 0
2 years ago
How to determine the enzymes used to cut plasmid in cloning.
Alex73 [517]
When cloning by restriction digest and ligation, you use restriction enzymes to cut open a plasmid (backbone) and insert a linear fragment of DNA (insert) that has been cut by compatible restriction enzymes. An enzyme, DNA ligase, then covalently binds the plasmid to the new fragment thereby generating a complete, circular plasmid that can be easily maintained in a variety of biological systems. Read on for an in-depth breakdown of how to do perform restriction digests.
8 0
2 years ago
How do the number of chromosomes in cells that go through meiosis and mitosis compare?
34kurt

Answer: Option A is correct.

Cells that go through meiosis have half as many chromosomes as cell that go through mitosis. Meiosis is that's why called REDUCTION DIVISION.

Explanation:

In meiosis, the number of chromosomes becomes half or reduced than the normal while, in mitosis the number of chromosomes remains the same.

6 0
2 years ago
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