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alisha [4.7K]
3 years ago
5

A lens that is thicker in the center than at the edges is called a ___________

Biology
1 answer:
Semenov [28]3 years ago
3 0
That's called a convex lens, as they converge.
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What gametes are produced by the following organisms:_______.
vova2212 [387]

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The correct answer would be -

1- YR, Yr, yR and yr.

2. Yr, yR

3. YR, yr

4. YR, Yr, yR & yr

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A mature male or female haploid germ cell that fuses with another gamete of the opposite sex during the process of fertilization to make a zygote in sexual reproduction.

The law of Independent Assortment presented by Mendel says that alleles for different traits are passed and assort independently of one another in the gametes.

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3).  if dominant Y and recessive r are on the same chromosome, no crossing over then only two gametes will form as Y and r will not assort together - YR & yr.

4). if dominant Y and R are on the same chromosome, 50% crossing over produces 4 types of gametes, YR, Yr, yR & yr.

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