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Biology : Recent Questions and Answers (Page 47)

Find answers to your questions about Biology or help others by answering their Biology questions.

Inhibitory effect of GABA through GABA(A) receptors

Over at Wikipedia, the following is written in the article about GABA(A) receptors:"Upon activation, the GABA(A) receptor selectively conducts Cl− through its pore. Cl- will flow out of the cell...

Asked on 04/11/2021

1 answer

Brain centers vs areas (and how they relate to nuclei)

I'm looking for a reputable source that can provide succinct definitions differentiating the following terms in the central nervous system (CNS; particularly in the brain):AreaCenterNucleusExamples include Wernicke's...

Asked on 04/11/2021

0 answer

How standardized is lab-grade skim milk?

I was surprised to learn in the answers to this question that in many cases the preferred cryoprotectant for many organisms is skim milk, rather than something more simple...

Asked on 04/11/2021 by jakebeal

1 answer

identification request - tiny flies invasion

Since they are tiny, this is the best photo I can do: We are in Berlin, Germany. It has become very...

Asked on 04/11/2021

0 answer

Is artificial selection a mechanism of evolution?

From whatever I read have seen that the mechanisms of evolution are natural selectionmutationgenetic drift, andgene flowBut artificial selection is often taught like a separate subtopic, but why isn't artificial...

Asked on 04/10/2021 by Hayden Soares

0 answer

Why aren't the antibodies in the mother's milk digested by the infant's digestive system?

Why aren't the antibodies in the mother's milk digested by the infant's digestive system? Enzymes like pepsin have been found to be present in infant's digestive system(1). Though the pH...

Asked on 04/09/2021 by trinitrotoluene

1 answer

What makes DNA helical?

Why isn't DNA like RNA; why isn't RNA like DNA, that is, helical? Why are RNA chains straight?...

Asked on 04/08/2021 by user4147

2 answer

Insect identification - Is this a bedbug?

This bug was found on a couch in Cape Girardeau, Missouri. The couch, and the two beds in the room show no signs of other bugs. Is this...

Asked on 04/07/2021 by Nick Criswell

1 answer

Why does NAD+ become reduced if it gains a hydrogen proton?

I've heard that $ce{NAD^+}$ gains a Hydrogen proton during glycolysis and the Krebs cycle and becomes reduced to $ce{NADH}$. However, isn't reduction when a molecule receives an electron? Maybe I've...

Asked on 04/07/2021 by AleksandrH

1 answer

If aging is caused by "DNA Damage" why is the process of aging generally similar between people?

When I hear the phrase "DNA Damage" I imagine completely random changes in the DNA of a person's cells. If this is the case, then it seems like every person...

Asked on 04/07/2021

0 answer

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