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3 years ago

Describe the structure of a mitochondrion.

2 answers:

8 0

Mitochondria are known as the powerhouses of the cell. They are organelles that act like a digestive system which takes in nutrients, breaks them down, and creates energy-rich molecules for the cell.

Mitochondria Structure

Mitochondria are shaped perfectly to maximize their productivity. They are made of two membranes. The outer membrane covers the organelle and contains it like a skin. The inner membrane folds over many times and creates layered structures called cristae. The fluid contained in the mitochondria is called the matrix.

The folding of the inner membrane increases the surface area inside the organelle. Since many of the chemical reactions happen on the inner membrane, the increased surface area creates more space for reactions to occur.

evablogger [386]3 years ago

3 0

The outer membrane is technically the skin and covers the organelle.

The inner membrane folds over many times and creates layered structures called cristae.

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Which variable is likely to undergo the largest change in value resulting from a mutation that introduces a new allele into a po

dsp73

Answer:

b. average heterozygosity

Explanation:

From the available options:

a. nucleotide variability

b. average heterozygosity

c. average number of loci

d. geographic variability

Nucleotide variability represents a form of genetic variation that occur as a result of difference in nucleotide sequence of deoxy ribonucleic acid.

The locus is a region on the chromosome where genes are located. Average number of locus thus refers to total number of loci per total number of individuals in a population.

Geographic variability refers to difference in genetic traits across the various geographical distribution of a population.

Average heterozygosity is the percentage or proportion of heterozygous individuals for a trait within a population. It is a common measure of genetic variation in a population.

When a mutation occur within a population and this leads to the introduction of a new allele at a locus for which some individuals within the population are homozygous, it will directly affect the average heterozygosity of the population because more individuals will lose their homozygosity and become heterozygous.

The correct option is b.

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3 years ago

ADD NOTE QUESTION GUIDE

kolbaska11 [484]

Answer:

In order to avoid confusion with the identification of organisms

Explanation:

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3 years ago

WILL MARK BRAINLIEST!

alexdok [17]

The answer is A, just took the test on edge

5 0

3 years ago

Read 2 more answers

Hey there! I was wondering if someone could explain what the integumentary muscles do in the body!

Crazy boy [7]

It consists of skin, hair, nails, and glands. The skin protects the body from the environment on the outside. It also functions to retain body fluids, protect against disease, eliminate waste products, and regulate body temperature. It also helps store fat and water.
Hope This Helps!

8 0

3 years ago

Which of the following is a reason why sticky end producing restriction enzymes are preferred compared to blunt end ones?

anyanavicka [17]

Answer:

D) Because sticky ends can be temporarily held together by hydrogen bonding between the two strands.

Explanation:

Restriction enzymes cut the DNA at specific restriction sites and by the mechanism of action they can form two types of ends:

sticky ends-single-stranded overhangs are formed
blunt ends-without overhangs.

The main advantage of sticky ends (their overhangs) is that they can complementary bind to another overhand formed by the same restriction enzyme. So, for example in cloning, if the DNA of interest and plasmid vector are cut with the same restriction enzyme, that forms sticky ends, fragment of DNA will fit into a bacterial plasmid in one direction.

On the other hand, blunt ends can be inserted into vector in both directions: head-to-tail or tail-to-head.

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3 years ago