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melamori03 [73]
3 years ago
14

One primary way in which genes have an effect on growth and development is through:______.

Biology
1 answer:
erastovalidia [21]3 years ago
3 0
Bbbbbbbbbbbbbvbbbbbbb
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In what phase of meiosis are tetrads of homologous pairs lined up along the center of the cell and attached to the spindle fiber
OverLord2011 [107]
Metaphase 1 is when <span>tetrads of homologous pairs lined up along the center of the cell and attached to the spindle fibers in meiosis. Hope I helped!</span>
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3 years ago
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Use the diagram to answer the question below. Which sequence lists the cell images in chronological order for mitosis
kifflom [539]

Mitosis goes in the order of PMAT, or Prophase, Metaphase, Anaphase, and Telophase.


Prophase is when the nuclear envelope breaks down and the chromosomes are visible. Metaphase is when the chromosomes line up in the middle. Anaphase is when the spindle fibers pull the centromeres apart. Telophase is when the chromosomes go to the opposite sides and the nuclear envelope reappears.


5 0
3 years ago
Which concept is correctly matched with an example from The Beaks of Finches lab? A) Variation – different "beaks" were availabl
victus00 [196]

Answer: Option A.

Different beaks were available

Explanation:

Variation is the difference between traits, cells, or characteristics between organisms of any species which is caused by change in genetic information or effect of environmental factors on the expression of genes.

From the question, different beaks were available because there is variation or differences in shapes, sizes and expression.

4 0
3 years ago
A normal man and normal woman marry. What is the chance that they will produce a male child with Down's syndrome?
nikitadnepr [17]

Answer:

The chance of a normal couple having a child with down syndrome is 1 to 600 births.

Explanation:

Down syndrome is a genetic flaw that occurs when the fetus is being formed.

A human cell considered normal has 46 chromosomes, divided into 23 pairs. For some unknown reason, an error may occur at the beginning of embryonic development and an extra chromosome is created, which binds to par 21. The result is cells with 47 chromosomes. This causes the said syndrome.

It is important to know that this failure happens at random. It is nobody's responsibility. It has not been proven to date that lifestyle, actions during pregnancy, smoking, drinking, medicines, environmental factors or kinship between the couple can influence this occurrence. She is not contagious either. The likelihood of a normal couple having a child with the syndrome is approximately 1 to 600 births.

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3 years ago
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The plastic bag conducted heat to the vegetables.
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