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Serjik [45]
3 years ago
13

Crossing over occurs during Prophase II. A. True B. False

Biology
2 answers:
Lemur [1.5K]3 years ago
8 0
False
crossing over occurs in prophase 1 of meiosis 1. The significance of this crossing over is to ensure cell differentiation. If this occurred in prophase two it means the cells in meiosis 1 will be identical.
gregori [183]3 years ago
5 0

Answer:

B. False

Explanation:

Crossing over not occurs in prophase II. It occurs only during prophase I.

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What is an irreversible process of deterioration in the body's systems and organs?
Angelina_Jolie [31]

The correct answer is the Cell Death.

The cell death may be the result of the natural process of old cells dying and or might be as the result of different factors like disease or localized injury. The cell death is necessary for the survival of an organism, for its development and growth. There are different types of cell death and different classifications of them. Most commonly it is classified by its s morphological appearance, so it may be apoptotic, necrotic, autophagic or associated with mitosis.

5 0
3 years ago
Please help! Its for a grade and im confused.
Arturiano [62]

From point W to point Z, the ball is B- Potential energy was transformed to kinetic energy. We know this because, at point W, the ball is in its potential form, it has the potential to roll but it has not yet started to. As we let the ball go, we turn that potential energy into kinetic energy, which is the energy that it has due to its motion.

I hope I've helped! :)

4 0
3 years ago
Why did Avery's group destroyed each type of molecule before adding it to the solution containing R bacteria? what can you concl
olya-2409 [2.1K]
Because that destroyed it so it could be more helpful
8 0
3 years ago
Which of the following is a correct statement about sugar movemetn in phloem?
Simora [160]

Answer:

a. movement can occur both upward and downward in the plant

Explanation:

The phloem loading causes the accumulation of sugars in the sieved elements generating a negative solute potential (quedas), with a drop in water potential (ψw), so water enters the sieved elements increasing the turgor pressure (ψp). With the discharge of phloem in the drain occurs lower concentration of sugars in the screened elements, increases the solute potential, becoming positive, thus the phloem water potential increases and thus the water leaves the conducting vessel. In the specific case of sugar movement in the phloem, it can be stated that this movement can occur both up and down in the plant.

7 0
3 years ago
What do you think may happen to the leading edge of plate a as it continues to move downward?why?
tester [92]
It will be melt in the layer of earth called mantle because mantle has a higher temperature than crust. and as it melt, it will be called magma.
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3 years ago
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