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Illusion [34]
3 years ago
10

Leak channels and sodium-potassium pumps are present on the cell body, dendrites, axon and terminal ends of the neuron cell memb

rane.
A. True
B. False
Biology
1 answer:
notka56 [123]3 years ago
6 0

Answer: True

Explanation:

The neuron has leak channels in the cell body, axon and dendrite and cell body. This is because the trans membrane potential exists in all parts of the cell membrane.

Because of this reason the the leak channels are available at each part of the neuron.

The action potential, trans membrane potential should exits in all the parts of the cell so it should be located in all the parts of cell.

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Hey there! :D

When we are talking about gametes, we can use a punnet square, or in this case, common knowledge. If two of the alleles for one phenotype are the same, we can infer there will only be two variations of the genotype. (because there are two dominant SS genes) We already know that "D" must be the answer. Firstly, there will be one allele for each gene, so there will always be an "S" and a "T" no "SS" or "tt" (when talking about gametes). That leaves us with B and D but there is no recessive "s" in the original genotype, so the answer must be "D".

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How is stomach acid neutralized in the small intestine
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3 years ago
A researcher while working in vitro (outside cell) added helicase enzyme which resulted in the untwisting of the DNA helix. But
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3 years ago
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There is a drought in an area in which white-tailed deer live. classify the drought as a density-independent factor or a density
Leya [2.2K]
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3 years ago
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Answer:

225 flies

Explanation:

Let gene for body colour : A

Let gene for eye type : B

Parent 1 : normal body and normal eyes = AABB

Parent 2: ebony body and eyeless = aabb

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F1 progeny is self crossed given that the two genes are on different chromosomes which means they show independent assortment:

AaBb X AaBb =

A_B_ = normal body, normal eyes = 9

aaB_ = ebony body, normal eyes = 3

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Hence the ratio is 9 : 3 : 3 : 1

Out of the 400 flies:

(9/16) * 400 = 225 flies have normal body colour and normal eyes

7 0
3 years ago
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