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vekshin1
3 years ago
13

Eukaryotic cells contain DNA in the mitochondria and chloroplasts (in addition to the nucleus). Is the organization of DNA in th

ese organelles more similar to bacterial or eukaryotic chromosomes. Why?
Biology
1 answer:
Elena L [17]3 years ago
3 0

Answer:

The DNA is more closer to bacteria.

Explanation:

Mitochondria and chloroplast are considered as semi-autonomous organelle because they contain their own genetic material. The mitochondria and chloroplast evolution can be explained by the endosymbiont theory.

The DNA of mitochondria and chloroplast are more closely related to bacterial chromosome rather than eukaryotic chromosome.  Both the organelle and bacterial DNA are double stranded and  their translation can be inhibited by the chloramphenicol. Some of their replicating enzymes also show similar characteristics.

Thus, the DNA is more closer to bacteria.

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A “flight or fight” response occurs when the body perceives a type of threat. The hormone known as adrenaline is released which
kotykmax [81]

Answer:

It is the Endocrine System.

Explanation:

The Endocrine System controls and regulates almost all the hormones in your body.

Integumentary System = Skin Tissues

Excretory System = Release of Waste out of the Body

Digestive System = Breakdown of Food

7 0
3 years ago
Which continent reports the greatest number of edible species? ____________________________
xxMikexx [17]

Answer:

it is africa:)hope it helps you

8 0
3 years ago
In sheep, the allele for belly fur (A) is dominant to the allele for no belly fur (a). A mother with the genotype As and the fat
docker41 [41]

Answer:

25%

Explanation:

In sheep, the allele for belly fur (A) is dominant to the allele for no belly fur (a). A mother with the genotype Aa and a father with the genotype Aa produce an offspring. What is the percent chance that the offspring will have NO belly fur?

Allele A is dominant over allele a.

Genotype of mother = Aa

Genotype of father = Aa

Crossing Aa and Aa:

Aa   x   Aa = AA, 2Aa, and aa

Since A is dominant over a, both AA and Aa have belly fur.

Hence, the ratio of the offspring with belly fur to those without belly fur is 3:1.

Percentage of the offspring without belly fur is 25%.

4 0
3 years ago
Why does using zebrafish as a model organism for genetic testing bring up ethical concerns?
Lunna [17]
They are not invertebrates so #1 is out

They are not endangered so #3 is also out

Also the argument that they are similar to humans is weak so I would recomend selecting # 4 because this seems like a reasonable ethical decision

this is just an educated guess though, good luck!
5 0
3 years ago
According to the theory of natural selection, organisms that possess variations best suited for an environment are
Anestetic [448]

Answer:

The answer is A

Explanation:

Since their variations are best suited for the environment, they have a higher chance of surviving.

4 0
3 years ago
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