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Nutka1998 [239]
3 years ago
15

For a mutation to affect evolution

Biology
2 answers:
omeli [17]3 years ago
6 0
For a mutation to affect evolution it has to be passed on to all the offspring if that is what you mean.
andrew-mc [135]3 years ago
4 0
If i remember this i promise i will tell you
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If matt and sarah have 10 children why do they all end up genetically different?
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Sir is not the father
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2 years ago
What questions do you have about our origins? What clues in nature can we look for to investigate this mystery?
suter [353]

Answer: Humans first evolved in Africa, and much of human evolution occurred on that continent. The fossils of early humans who lived between 6 and 2 million years ago come entirely from Africa. Most scientists currently recognize some 15 to 20 different species of early humans.

Explanation:

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2 years ago
The genetic material inherited in an organelle, such as a mitochondrion or a chloroplast, exhibits _____ inheritance.
forsale [732]

The genetic material inherited in an organelle, such as a mitochondrion or a chloroplast, exhibits Extranuclear inheritance.

When DNA in cytoplasmic organelles is handed on to offspring, extranuclear inheritance occurs. Cytoplasm can be found in both sperm and ovum cells in humans. Most of the extranuclear DNA formed when the sperm and ovum combine belongs to the mother. The organelles in the fertilized cell expand and divide as the fertilized egg grows. As a result, each new cell receives mtDNA, which likewise divides and is passed on. As a result, each child inherits mtDNA from the mother. The identical procedure takes place in creatures with cells that contain chloroplasts.

Nuclear DNA differs greatly from extranuclear inheritance in several ways.

  1. Chloroplasts and mitochondria both store several copies of DNA. Additionally, the cytoplasm of every cell contains a number of each organelle, occasionally thousands.
  2. In a cell's cytoplasm, chloroplasts and mitochondria are dispersed at random. There is a random distribution of amount in both daughter cells after cell division, whether it be through mitosis or meiosis.

To learn more about inheritance visit the link:

brainly.com/question/12206571?referrer=searchResults

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8 0
1 year ago
Any substance that can stimulate the production of antibodies and combine specifically with them
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"antigens"

Hope this helps!

-Payshence xoxo<span>
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5 0
2 years ago
The Km of your favorite enzyme that operates by normal Michaelis-Menten kinetics is 10-6 M. You start off with a substrate conce
swat32

Answer: (a) 0 no free enzyme left

(b) 10^-9M

Explanation:

ANSWER:

Given that

Kcat = 10 sec-1

Km = 10^-6 M

[S] = 10^-3 M

[Enzyme] = 10^-9 M

The reaction follows the following path-

Enzyme (E) + Substrate (S) <=> ES complex -> E + Product (P)

According to the improved model of Michaelis-Menten kinetics, upon addition of substrate and the enzyme, instead of dynamic equilibrium, a steady state is reached. The time taken is very less, almost instantaneously (since Kcat is much higher than the concentrations we are dealing with (10 per second! Whereas we are dealing with concentrations as low as 10-9).

In this steady state, the Enzyme and substrate instead of existing individually, exist as an Enzyme-Substrate complex, or ES complex.

Physically, Km is a measure of how well substrate complexes with an enzyme, i.e. It's binding affinity.

You can imagine this as if 1 unit of the substrate can bind to "Km" units of Enzyme. For the give conditions, 1 M of the substrate requires 10^-6 M enzyme for complete binding. So, 10^-3 M of the substrate will require 10^-3 x 10^-6 = 10^-9 M of the enzyme, which is the exact amount of enzyme added to the reaction mixture.

So it is safe to assume that when the steady state is reached, all of the enzyme is bound to the available substrate producing the ES complex with the concentration equal to the limiting reactant, i.e. the enzyme = 10^-9 M

Hence, there will be no free enzyme left after the short duration of the reaction. And the concentration of the ES complex will be 10^-9 M

8 0
3 years ago
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