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Norma-Jean [14]
4 years ago
5

In epithelial tissue, what is this bottom layer called?

Biology
1 answer:
wariber [46]4 years ago
6 0

Answer:

Basal Surface

Explanation:

The bottom layer of epithelial tissue that attaches to the basement membrane

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Cancellous bone is sometimes called _____ bone
rodikova [14]
Cancellous bone is sometimes called a dense bone.
So the answer would be A
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3 years ago
Which structure(s) are connected to the peripheral nervous system? Select all that apply.
goldfiish [28.3K]

Answer: Here you go

Explanation: nerves (cranial, spinal, and peripheral) and neurons (sensory, motor)

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3 years ago
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Arrange the following in the proper sequence in which they occur during a single PCR cycle.
Tju [1.3M]

Answer:

C. 3, 2, 1

Explanation:

During a single PCR cycle, the very first step is the heat separation of the double stranded DNA. Primer binds only single stranded DNA/RNA because it has complimentary bases which match single strand of DNA/RNA that is why it is necessary to unwind both the strands of DNA by providing temperature.

As soon as the DNA strands have separated by increasing the temperature to ~ 95 °C, in the next step the primer binds the portion of DNA which is complimentary to the bases of the primer. In order for primer to bind DNA, the temperature is lowered to ~ 72 °C and the process is called as annealing.

Once primer has bound to the DNA, the next step is polymerization i.e. nucleotides which are the monomer units of DNA are added one by one with the help of enzyme named as Taq polymerase. This is how the strand extends ahead of primer and exact copies of the given DNA are produced.

Note: PCR may be considered as in vitro DNA synthesis or replication.

5 0
3 years ago
Which of the following is the causative agent of East African trypanosomiasis?
masha68 [24]

Answer:

The correct answer will be option-<em>Trypanosoma brucei rhodanese</em>.

Explanation:

African trypanosomiasis is an insect-borne disease in the African continent which is also known as sleeping sickness.

This disease is named on the basis of a part in which they were found in the continent like the disease found in the east is known as east African trypanosomiasis which is caused by the type of <em>Trypanosoma brucei</em> protozoa called <em>Trypanosoma brucei rhodanese</em> which is carried by the tsetse fly found only in rural parts of Africa.

Thus, option-<em>Trypanosoma brucei rhodanese</em> is the correct answer

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