Answer:
Cell membrane
Explanation:
A cell membrane is basically a protection of the cells. It controll what goes in and out of the cell and separates the interior of the cell from the outside environment. they contain receptors and channels that allow specific molecules, such as ions, nutrients, wastes, etc that mediate cellular activities to pass between organelles.
Answer:
enzyme catalase
Explanation: When the enzyme catalase comes into contact with its substrate, hydrogen peroxide, it starts breaking it down into water and oxygen.
RFLP = Restriction fragment length polymorphismWe can say that an individual has a recombination when we see that in RFLP there are two bands. One in normal migration, and one in the pathologic migration.In generation III we can see it in individual 1, 3, 5, 7, 8, and 10. Any modification of the DNA sequences (mutation, addition, deletion) frequently rearranges the restriction sites. During the action of restriction enzymes, the size of the restriction fragments is then modified, and the fragments are then separated differently according to their size by electrophoresis: a polymorphism is observed.
the ice because the albedo value is high
Answer:
The statement that is correct is that all cells have the same genes, but different genes are active in different cells.
Explanation:
Differentiation or specialization is a function that cells possess and is what allows them to have different types of cells and tissues.
Cell differentiation depends on genetic regulation, a mechanism that determines the specific genes that are expressed in a cell or tissue type.
All cells contain the same DNA, which is organized into chromosomes and contain the genes that determine specific characteristics. <u>There is cell differentiation because some genes can be expressed and others are suppressed, all due to genetic regulation</u>.
The other choices are wrong because:
- <em>The eyes look different from the liver, because they have the same genes, but only some are expressed.
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- <em>Differentiated cells and tissues do not lose their genes.
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- <em>All cells have DNA.</em>
