What are the transverse folds found at the posterior end of the vagina?

Biology

2 answers:

olganol [36]3 years ago

6 0

Rugae is the answer...

raketka [301]3 years ago

4 0

It is called the Rugae.
Rugae is a term used in anatomy to refer to a series of ridges produced by folding of the wall of an organ. For example the gastric rugae which allows for expansion of the stomach after the consumption of foods and drinks. The rugae of the vagina are the transverse ridges on the mucous membrane lining the vagina. They allow the vagina to stretch during childbirth.

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What motion moves food down the esophagus to the stomach

nekit [7.7K]

Peristalsis is a radically symmetrical contraction and relaxation of muscles that propagates in a wave down a tube, in an anterograde direction.

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3 years ago

Three different alleles (c1, c2, and c3) at the c locus exist in a hypothetical population of juniper trees. If the frequency of

prisoha [69]

Answer:

Explanation:

When considering the frequency of the potential alleles of a gene in a population, the total must add up to 1. Think of it like percentages. an allele frequency of 0.3 means 30% of the population carry it (out of a possible 100%).

We know that the frequency of c1 is 0.3. Lets take each option and see if it can be true

a) cannot be less than 0.3. - false. It could be less than 0.3. For example, it could be 0.1, meaning the frequency of allele c3 would be 0.6 (because 0.3 + 0.1 + 0.6 = 1)

b) cannot be greater than 0.3. - false. It could be greater than 0.3. For example, it could be 0.5, meaning the frequency of allele c3 would have to be 0.2 (because 0.3 + 0.5 + 0.2 = 1)

c) is 0.7. - false. It can't be 0.7, because that would mean that the frequency of c3 is 0. (0.7 + 0.3 = 1)

d) cannot be greater than 0.7. - true. It cannot be greater than 0.7, because that would mean that the frequency of c3 is 0. (0.7 + 0.3 = 1)

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3 years ago

A scientist wants to begin making a DNA fingerprint, but she has only a very small DNA sample. What should her next step be

azamat

For obtaining an adequate amount of DNA samples for DNA fingerprinting, polymerase chain reaction (PCR) can be used.

Polymerase chain reaction (PCR) is a technique that is used to amplify the DNA sample. The steps included in PCR are:-

1. Denaturation of the double-stranded DNA (at around 95°C)

2. Annealing of the primers to each of the single-stranded DNA templates ( at around 65°C)

3. Extension or elongation of the primers by considering every single-stranded DNA as a template. This elongation is carried out by Taq polymerase (at around 72°C).

With each cycle of PCR, the DNA sample is increased by 2ⁿ. Here, 'n' represents the number of PCR cycles.

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Learn more about polymerase chain reaction here: -

brainly.com/question/11442887

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1 year ago

Need help pls o don’t understand this question pls help :)

larisa86 [58]

Answer:

The formation of new species would be the correct answer

Explanation:

As the meaning of speciation, speciation is the word that is used to decribe a new, distinct species that have never appeared before.