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sattari [20]
4 years ago
8

Please help me with all of these...

Biology
1 answer:
kap26 [50]4 years ago
3 0

not really familiar with all this but I think 1. Relative dating is where they estimate or relatively guess around how old it is so you could just put something like "an estimate of the age" or something

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erastova [34]
Draw a table that is 2x2. On the top, write a capital R over on box and a lowercase r over the second. On the side, write a lowercase r next to one box and another lowercase r by the other. The top left box would have Rr. The top right would have rr. The bottom left would have Rr and the bottom right would have rr. The probability would be 50%. There is a 50% chance of having wrinkled seeds
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3 years ago
Why is crossing over an essential step in meiosis
marshall27 [118]

Crossing over is essential for the normal segregation of chromosomes during meiosis. Crossing over also accounts for genetic variation, because due to the swapping of genetic material during crossing over, the chromatids held together by the centromere are no longer identical.

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4 years ago
The following list of events happens during meiosis:
Harlamova29_29 [7]

Answer:

1 and 2

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6 0
2 years ago
What are the role of all four types of lipids: fats, phospholipids, waxes, and steroids.
ycow [4]
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Waxes
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Phospholipids
consist of Glycerol portion and fatty acid chains. Only two fatty acids chains; in place of the third is portion that include a phosphate group. THe phosphate portion is soluble in water [hydrophobic] forms the ''head'' of the molecule, while the fatty acids portion is insoluble in water [hydrophobic] and forms a ''tail''.

Fats
to store energy for cellular activities. Carbohydrates fat molecules are composed of carbon, hydrogen and oxygen atoms.


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3 years ago
Amniocentesis is a process in which amniotic fluid is taken from the mother's womb to identify any genetic abnormalities in the
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<span>B)<span>The exact location of a particular disease-causing gene can be determined.

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