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RideAnS [48]
3 years ago
8

What must happen before meiosis can begin

Biology
1 answer:
RUDIKE [14]3 years ago
4 0

Answer:

The correct answer is option C.

Explanation:

Before meiosis, DNA that is stacked into chromosomes must replicate. Before replication, the sex cell has two copies of each chromosome, one from mother, and one from father.

DNA replication takes place in the same manner as it does during mitosis. After the chromosome replication, the homologs are double in number, and each chromosome now has a homologous pair of chromosomes.

Thus, the correct answer is option C.

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Which part of the cell membrane prevents the cell from dissolving in water​
fredd [130]

Answer:

As the outer layer of your skin separates your body from its environment, the cell membrane (also known as the plasma membrane) separates the inner contents of a cell from its exterior environment. This cell membrane provides a protective barrier around the cell and regulates which materials can pass in or out.

Explanation:

6 0
3 years ago
What is energy coupling?
vagabundo [1.1K]

Answer:

c: the use of energy released from an exergonic reaction to drive an endergonic reaction.

Explanation:

<em>Energy coupling is a process involving two reactions whereby one of the reactions generate energy, and the generated energy is used to drive the other reaction. </em>

A reaction during which energy is generated is referred to as exergonic reaction while one in which energy is consumed is known as endergonic reaction. Hence, energy coupling can also be viewed as a process linking exergonic and endergonic reactions whereby the energy released in the former is used up by the latter.

A good example is illustrated by the light dependent and light independent reactions of photosynthesis during which the ATP and NADPH produced during the light dependent reaction is used to fix carbon dioxide in the light independent reaction.

<em>The correct answer is C.</em>

6 0
3 years ago
Amagnetwith alength of 10cmwasgiven to Meera and shewas told to break themagnetinto3 pieces.Before breaking the magnet had 1 nor
Marat540 [252]

Answer:

3 North poles and 3 South poles

Explanation:

A magnet is a piece of object that produces a magnetic field outside itself. A magnet has a north pole and a south pole. Similar poles repel each other, while opposite poles attract each other.

If a magnet of 10cm is broken into 3 pieces, we will have 3 pieces of magnet. Breaking a magnet does not destroy the properties of the magnet. Rather, each piece becomes a full magnet with both north and south poles.

Breaking a 10cm magnet will give us 3 magnets with 3 north and 3 south poles with equal pole strength.

8 0
2 years ago
Which type of biome is the most productive?
boyakko [2]
Tropical rain forest biome :)
3 0
2 years ago
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Health risk of drinking goat milk
dangina [55]

Answer:

long term heart promblems

long term lungs and liver

Explanation:

5 0
3 years ago
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