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Marina86 [1]
2 years ago
8

A mutation in which one nucleotide in the dna sequence is substituted for another nucleotide is referred to as a ________ mutati

on
Biology
1 answer:
stepan [7]2 years ago
4 0
The answer is a point mutation
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What would be the expected result if a competitive, nonhydrolyzable analog of ATP were applied to the cytoplasmic side of a plas
marusya05 [52]

Answer:

The cell interior would experience higher than normal Na+ concentrations and lower than normal K+ concentrations.

Explanation:

Na+/K+ ATPase exists in two forms: Its phosphorylated form has a high affinity for K+ and low affinity for Na+. ATP hydrolysis and phosphorylation of the Na+/K+ pump favor the release of Na+ outside the cell and binding of K+ ions from the outside of the cell. Dephosphorylation of the pump increases its affinity for Na+ and reduces that for K+ ions resulting in the release of K+ ions inside the cells and binding to the Na+ from the cells.  

The presence of ATP analog would not allow the pump to obtain its phosphorylated form. Therefore, Na+ ions would not be released outside the cells. This would increase the Na+ concentration inside the cell above the normal. Similarly, the pump would not be able to pick the K+ from the outside of the cell resulting in reduced cellular K+ concentration below the normal range.  

7 0
3 years ago
"They will be able to better understand how, exactly, the creature is able to adapt so well to different environments" Expand on
Vikentia [17]

Answer:

Please see below

Explanation:

Adapting to the surrounding environment is a critical part of surviving and, eventually, evolution. Take mice as an instance. Their coat color plays a major role in allowing to go undetected from potential predators if they are able to blend in well with the surrounding environment. Mice with a coat color that makes them stand out will be easily preyed on. Hence, those who have <u><em>adapted</em></u> to their environmental conditions will live to pass on their genes. This phenomenon is known as selection pressure.

6 0
3 years ago
The part of blood that carries waste is
AlexFokin [52]

Answer:

Plasma

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Plasma carries water, salts, and enzymes. The main role of plasma is to take nutrients, hormones, and proteins to the parts of the body that need it. Cells also put their waste products into the plasma. The plasma then helps remove this waste from the body.

8 0
3 years ago
Do you think that having chloroplasts gives plant cells an advantage over animal cells? give support for your opinion.
mote1985 [20]
Animals have many advantages. But plants can make food anywhere there is sunlight/ultraviolet rays. So no need to hunt unless you're a Venus Flytrap. So plant cells can sustain themselves easier to a degree. As with many things in biology, it all comes down the the circumstances.
4 0
3 years ago
I dont kno what is this because since this is layers of earth its hard for me
Angelina_Jolie [31]
Cant see the picture/question
7 0
2 years ago
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