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attashe74 [19]
3 years ago
12

Biologists use molecular clocks to try to measure _____.

Biology
1 answer:
Sidana [21]3 years ago
7 0
<span>They use this to predict the timing of evolutionary events...</span>
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Which type of neuron allowed her body to cause the movement that removed her hand from the sharp object?
jenyasd209 [6]
It is C sensory or D not quite sure.
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3 years ago
Ep-12 when someone falls overboard, what action should the skipper take?
Andre45 [30]
When someone falls overboard,  the action that skipper should take is to get flotation to the person and assign a spotter.  <span>Have someone keep the victim in sight.</span>
6 0
4 years ago
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During glycolysis, a 6-carbon sugar diphosphate molecule is split into two 3-carbon sugar phosphate molecules. True or false?.
Hatshy [7]

The above statement is true. During glycolysis, a 6-carbon sugar diphosphate that is fructose-1,6-bisphosphate is splitted into two 3 carbon sugar phosphate molecules that are dihydroxyacetone phosphate and glyceraldehyde-3-phosphate.

<h2>What is glycolysis? </h2>

Glycolysis is a 10-step reaction wherein glucose is divided into two pyruvate molecules, each of which has three carbons.

Glycolysis is the initial step in the process of cellular respiration in organisms. However, many anaerobic organisms also contain this route since glycolysis does not require oxygen.

<h2>What are the various steps involved in glycolysis? </h2>

1. The conversion of D-glucose into glucose-6-phosphate is the initial step in the glycolysis process. The enzyme catalyst in this case is hexokinase.

2.This second phase involves the conversion of fructose 6-phosphate  from glucose 6-phosphate.

3. Using magnesium as a cofactor, fructose 6-phosphate is changed into fructose 1,6-bisphosphate.

4. Fructose 1, 6-bisphosphate is split into two identical sugars by the enzyme aldolase. Dihydroxyacetone phosphate (DHAP) and glyceraldehyde 3-phosphate are the names of these two sugars.

5.The molecules glyceraldehyde 3-phosphate and dihydroxyacetone phosphate (DHAP) are quickly interconverted by the enzyme triphosphate isomerase.

The first five steps listed above are regarded as the initial phase.

6.Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) converts glyceraldehyde 3-phosphate into 1,3-bisphosphoglycerate by dehydrating it and adding an inorganic phosphate.

7. To create ATP and 3-phosphoglycerate, a phosphate group from 1,3-bisphosphoglycerate is transferred to ADP.

8. In this step, Phosphorous from 3-phosphoglycerate is transferred from the third carbon to the second carbon to generate 2-phosphoglycerate.

9. An enzyme removes a water molecule from 2-phosphoglycerate to create phosphoenolpyruvic acid (PEP).

10. Phosphoenol pyruvic acid is converted to pyruvate.

To know more about glycolysis visit:

brainly.com/question/13063454

#SPJ4

4 0
2 years ago
The sickle-cell allele, which is recessive, causes anemia but confers resistance to malaria in individuals who possess it. Howev
masha68 [24]

Answer:

A. the heterozygote advantage

Explanation:

Heterozygote advantage is the condition where the heterozygous individual has higher relative fitness than both homozygous dominant and homozygous recessive individual. This means that the heterozygote individual has higher chances of surviving than both the homozygous counterparts. Sickle cell anemia is a recessive inherited disorder in which oxygen carrying hemoglobin has an abnormal structure. Hence, the resultant RBCs are not spherical but have crescent sickle shape. The oxygen carrying capacity of such RBCs is drastically reduced but they are unaffected by malarial parasite due to their abnormal structure.

  • A person with both the recessive genes for sickle cell would not be able to survive due to insufficient oxygen transport in body.
  • A person with both the dominant genes would be free of sickle cell anemia  but in case of malaria would not be able to survive as the normal RBCs would be hijacked by the parasite.
  • A hetrerozygote would survive both in malaria and sickle cell condition since he has enough normal RBCs for oxygen transport but also has sickle cell RBCs which are unaffected by malarial parasite.
3 0
4 years ago
The overall change of the atom is blank because the charges of the electrons and protons have canceled each other out
uysha [10]

Answer:

Neutral.

Explanation:

When an atom has an equal number of electrons and protons, it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons). The total electric charge of the atom is therefore zero and the atom is said to be neutral.

6 0
3 years ago
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