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rjkz [21]
3 years ago
11

Describe the physical structure of DNA.​

Biology
1 answer:
sukhopar [10]3 years ago
4 0
DNA has a double helix structure. The outer edges are formed by alternating deoxyribose sugar molecules and phosphate groups. The two strands run in opposite directions one going in a 3 to 5 the other going in a 5 to 3.
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Grandpa Sam used to tell his grandkids how he first laid eyes on Grandma Sylvia. “When I was courting your granny, I was dazzled
bonufazy [111]
Long eyelashes is the dominant trait because, in the last sentence, donna mentioned how nearly everyone in the family had long eyelashes, while barbara and her had short ones. this proves that long eyelashes are much more common in the family than short eyelashes, which means long eyelashes would be dominant, while short eyelashes would be recessive.
6 0
3 years ago
Alcohol dehydrogenase (ADH) is an enzyme that aids in the decomposition of ethyl alcohol (CH3OH) into nontoxic substances. Methy
Thepotemich [5.8K]

Answer:

d. Competitive inhibition will decrease because the proportion of the active sites occupied by substrate will increase.

Explanation:

Enzymes are bio catalysts in living cells responsible for aiding biochemical reactions.

Their active sites are primary protein  3D structure  for binding with substrates during   reactions.

Enzymes reactions are usually affected by inhibitors(e.g methyl alcohol) which compete with the active site with the actual substrate(ethyl alcohol) ,

This is an example of competitive inhibition. The more ethyl alcohol available, the more active sites  occupied, therefore denying the inhibitor methylalchol  chances to the active site, thus preventing the formation of toxic formaldehyde, and more of non toxic substances from formation of more ADH-METHYL ALCOHOL COMPLEXES at the active sites

8 0
3 years ago
What happens to the effenciency of the exchange of oxygen in the human body at a high altitude​
Daniel [21]

Answer:

The effiency decreases at higher altitudes

Explanation:

The higher up a person is on a mountain, the thinner the air is due to the lack of plants that can grow. An example of this is Mount Everest. At a certian point on the mountain, called the "Death Zone", the air is too thin to supply enough oxygen to the human body to survive. That's why they bring oxygen tanks with them on their adventures.

7 0
3 years ago
Which type of substance adds nutrients to the soil that plants take in through their roots?
gulaghasi [49]

The answer is A. Fertilizer

The other answer choices don't make sense Herbicide is a poison that kills plants, Pesticide is an insect killer, while a Growth Hormone is designed to help the plant grow not to put nutrients into the soil.

6 0
3 years ago
Which one of Edwin Hubble’s findings that support the Big Bang Theory
MArishka [77]

Answer:

Edwin Hubble's findings supporting the 'big bang theory' are as follows – almost all galaxies are moving away from us and the 'farther away a galaxy' is, the faster it is moving away.

Explanation:

The theory speaks of an ever-expanding universe and the proponent calculated the Law of Hubble.

4 0
4 years ago
Read 2 more answers
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