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Dominik [7]
3 years ago
15

Someone pleaseee help me with this !!

Biology
1 answer:
levacccp [35]3 years ago
4 0
Lizards and snakes!
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Sometimes genes, for no known reason, change their form in a process called spontaneous __________.
cupoosta [38]

Answer:

Mutation.

Explanation:

Mutation may be defined as the sudden heritable change in the DNA sequence of the organisms. Mutation can results in the change in the genotype and phenotype of the organisms.

Two main types of mutation are spontaneous mutation and induced mutation. Induced mutation occurs intentionally with the help of the mutagens. Spontaneous mutation is the natural mutation that occurs for the no known reason.

Thus, the answer is spontaneous mutation.

7 0
3 years ago
What role does the endomembrane play
Elena L [17]
Answer:
            Endomembrane system is made up of endoplasmic reticulum and Golgi apparatus. Rough endoplasmic reticulum play a key role in protein synthesis, while golgi apparatus is responsible for packaging, modification and transport of proteins to different parts of cell.
4 0
3 years ago
The Earth is populated mostly by single-celled organisms, such as bacteria. However, there are many multi-celled organisms as we
DedPeter [7]
D is the answer to your question
4 0
3 years ago
What term describes the rising and sinking of the lithosphere as material is added or removed?
Margaret [11]
<span>Composition. (We use the crust-mantle-core terminology to describe differences in chemical composition in Earth's interior. We use the lithosphere- asthenosphere terminology to describe differences the physical state and behavior. Note that the boundaries between layers with different compositions do not occur at the same depths as the boundaries between layers with different physical properties. For example, there is a change in composition when passing from crust into mantle. But there is no change in physical state or behavior at this boundary- the uppermost part of the mantle behaves in the same way that the crust does because it is still far enough below its melting temperature to be a rigid, brittle solid. The transition to a softer, more pliable solid occurs further down within the mantle and this change in behavior occurs with no change in composition.)</span>
3 0
3 years ago
How many copies of DNA are produced after PCR is completed?<br><br> one copy or billions of copies?
viva [34]

Answer:

Billions

Explanation:

"Then each of these strands can be used to create two new copies, and so on, and so on. The cycle of denaturing and synthesizing new DNA is repeated as many as 30 or 40 times, leading to more than one billion exact copies of the original DNA segment."

4 0
3 years ago
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