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2 years ago

The influx of which ion is directly responsible for triggering the release of acetylcholine from a motor neuron?.

Biology

1 answer:

AveGali [126]2 years ago

6 0

Answer:

The influx of which ion is directly responsible for triggering the release of acetylcholine from a motor neuron? When an action potential from a neuron reaches an axon terminal, voltage-gated calcium channels open. The influx of calcium triggers exocytosis of acetylcholine.

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Which charterstic makes the nine amino acids essential

Andreas93 [3]

The essential amino acids cannot be produced in the human body and hence these amino acids have to be obtained through the diet. Hence these amino acids have this characteristic that these cannot be produced in the human body and have to be obtained through diet this makes them essential. Hence those nine amino acids are considered as the essential amino acids.

7 0

3 years ago

Which of the following would be produced by meiosis?

iVinArrow [24]

Sperm cell. Meiosis is the creation of Sex cells, therefore, the answer would be Sperm Cell.

7 0

3 years ago

Water-molds are made up of

mamaluj [8]

Answer:

plasmodium slime as it makes the mold of water ast all time

3 0

3 years ago

Read 2 more answers

Hardy Weinberg Practice Problems To demonstrate your understanding of the Hardy-Weinberg equilibrium, answer each question caref

andriy [413]

Assuming that the affection is a recessive trait caused by a single diallelic gene, the percentage of the population that possess the heter0zyg0us advantage is 32%.

<h3>Available data</h3>

1000 of African people population
4% of the population is born with sickle cell anemia

100% of the population -------------------- 1000 individuals

4% of the population with anemia------- X = (4 x 1000) / 100 = 40

0.04 is the frequency of individuals with sickle cell anemia.

Assuming that the affection is a recessive trait caused by a single diallelic gene, we can get the allelic frequency as follows.

The genotypic frequency is q² = 0.04

The allelic frequency is q = √0.04 = 0.2

Having the recessive allelic frequency, we can get the dominant allelic frequency, by clearing the following equation,

p + q = 1

p = 1 - q

p = 1 - 0.2

p = 0.8

So, the allelic frequencies are

p = 0.8

q = 0.2

To get the heter0zyg0us frequency, we just need to replace the values

2pq = 2 x p x q = 2 x 0.2 x 0.8 = 0.32

The frequency of the heter0zyg0us genotype is 0.32 = 32%.

32% of the population possess the heterozygous advantage.

You can learn more about Hardy-Weinberg equilibrium at

brainly.com/question/8667324

6 0

2 years ago

PLEASE HELP DUE TODAY!!

Shalnov [3]

The genetic fault that usually causes colour vision deficiency is passed on in what's known as an X-linked inheritance pattern.

This means:

1) it mainly affects boys, but can affect girls in some cases

2) girls are usually carriers of the genetic fault – this means they can pass it on to their children, but do not have a colour vision deficiency themselves

3) it's usually passed on by a mother to her son – the mother will often be unaffected as she'll normally just be a carrier of the genetic fault

4) fathers with a colour vision deficiency will not have children with the problem unless their partner is a carrier of the genetic fault

5) it can often skip a generation – for example, it may affect a grandfather and their grandson

6) girls are only affected if their father has a colour vision deficiency and their mother is a carrier of the genetic fault

5 0

4 years ago