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mestny [16]
2 years ago
11

Biology, Need help!

Biology
1 answer:
Serhud [2]2 years ago
8 0
I believe the answer is B
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A DNA strand with the sequence ATT GCT will be complementary to which of the following
Sonbull [250]
The answer is number 2. A will pair with T and C will pair with G
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3 years ago
Air is.....
GREYUIT [131]

Answer:

C- homogeneous mixture

Explanation:

its made up of multiple elements that aren't chemically combined.

you cannot see the parts of the mixture

6 0
3 years ago
8-4 Discounting the Transverse Carrier Model. At one time, membrane biologists thought that transport proteins might act by bind
Natasha_Volkova [10]

Answer:

The two main reasons are nonpolar core of the bilayer and the active transport.

Explanation:

The membrane is structured to have two outer layers that are polar and an inner layer that is nonpolar.

If a membrane protein is exposed to the solvent, i<em>t will also have a polar side. It would be very difficult for the polar face of the membrane to move through the nonpolar core of the bilayer.</em> Therefore, this model is not feasible.

One major form of transport, active transport, moves solutes up the concentration gradient. <em>The binding of a solute and then release on another side of the membrane would only work for facilitated diffusion because it would cause a net movement of solutes down the concentration gradient.</em> It is unclear how energy could be expended to drive this process in the transverse carrier model.<em> Therefore, the transverse carrier model does not explain active transport.</em>

6 0
3 years ago
Athletes and physically active people have increased needs for
STALIN [3.7K]
They have increased need to carbohydrates, protein, water and iron.

Carbohydrates is the primary source for energy and active people apparently need more energy for their daily activities.

Protein helps build muscles, even though they only need a small amount more of protein than normal people, they still require protein for muscle buildings.

Water has to be needed as they may excrete more sweat by active activities in the day time. Water can also help remove waster material from body.

Iron helps the production of hemoglobin, which is in the red blood cells that help transport oxygen. As they exercise more, they need more oxygen supply for respiration, therefore there is a need for iron supply.
3 0
3 years ago
How do genetic modification variations likely to differ from genetic sexual reproduction variations
ololo11 [35]

Answer:

The  genetic modification variations result in the change in the genome of the organism. In this case, the variations result in expression of a trait in different form than usual. These variations results in genetic mutation, which can be inherited from one generation to another.

In sexual reproduction, the genome of the organism is not altered. In this only an exchange between the maternal and the maternal alleles takes place, these changes does not result in mutations.

You’re welcome :)

5 0
3 years ago
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