03 Mendel Revisited

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1. The number of phenotypes produced in the F2 generation of a trihybrid cross is _________.

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03 Mendel Revisited - Quiz

Expansions of, complications of, and exceptions to Mendel's ideas.

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2. The number of genotypes produced in the F2 generation of a trihybrid cross is _________

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3. The number of different types of gametes produced in the F2 generation of a trihybrid cross is _________

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4. If you can't figure out the progeny of a cross in genetics, it is best to remember the old saying (borrowed from football), "When in doubt, _________!" (No, this one will not be on the exam.)

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5. The dominance relationship between the red-flower allele and the white-flower allele in snapdragons is an example of _________.

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6. The dominance relationship between the A allele and the B allele in in human ABO blood type is an example of _________.

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7. An example of a human trait that shows incomplete penetrance is _________.

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8. Assume that plant height in a certain plant is determined by three equally additive genes. That is, AABBCC plants are the tallest and aabbcc plants are the shortest. In the progeny of the cross:AaBbCc x AaBbCc_________/32 would be the next to the tallest plants. (Type in the numerator of this fraction.)

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9. If a trait has a heretability (h2) = 0.15, then the trait is determined primarily by _________.

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10. In mice, the allele for agouti color (A) is dominant to the allele for black (a). However, regardless of which of these two alleles a mouse has, if it is homozygous recessive for the tyrosinase mutation (cc), it will be white. This is an example of the type of gene interaction called _________.

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11. In mice, the allele for agouti color (A) is dominant to the allele for black (a). However, regardless of which of these two alleles a mouse has, if it is homozygous recessive for the tyrosinase mutation (cc), it will be white. Among the progeny of the cross AaCc x AaCc,  _________/16 will have white fur. (Type in the numerator of this fraction.)

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12. In the type of gene interaction called gene suppression, an individual that is homozygous for two recessive mutations has the _________ phenotype.

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13. Among the viable progeny of the cross of two yellow-furred mice, _________/3 should have yellow fur. (Type in the numerator of this fraction.)

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14. The expression of a gene can be altered by moving it to a new chromosomal location (to a new locus). This phenomenon is called _______  (we didn't cover this one this year, 2010).

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15. Himalayan coat in rabbits, where fur can be white or dark, is due to a type of conditional mutation, more specifically a _______ mutation (we didn't cover this one this year, 2010, but it is the same as fur in Siamese cats).

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16. If a single mutation has more that one phenotypic expression, it is called a (an) _______ mutation.

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17. If the phenotype is determined by the genotype of the mother, the trait is an example of the ________  (we didn't cover this one this year, 2010).

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18.
The trait (dark circles or squares) illustrated by the pedigree above is:

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19. The trait (dark circles or squares) illustrated by the pedigree above is:

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20. This pedigree shows a trait (dark circles or squares) caused by an autosomal recessive gene. Individual #2 is:

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21. One of the most significant exceptions to Mendel's concepts of heredity the phenomenon of

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22. A woman with blood type AB has a child with blood type AB. Which man can be ruled out as the possible father?

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23. The trait (dark circles or squares) illustrated by the pedigree above is:

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24. A mother who is blood type A has a child who is also blood type A. Which man can be ruled out as the possible father?

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25. In Drosophila, one recessive mutation is found that causes the fly to have abnormally short wings. Then, months later, a second recessive mutation is found that causes the fly to have even shorter wings. When these two mutant strains are crosses, their progeny all have normal-length wings. You can concluded that:

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The number of phenotypes produced in the F2 generation of a trihybrid...
The number of genotypes produced in the F2 generation of a trihybrid...
The number of different types of gametes produced in the F2 generation...
If you can't figure out the progeny of a cross in genetics, it is best...
The dominance relationship between the red-flower allele and the...
The dominance relationship between the A allele and the B allele in in...
An example of a human trait that shows incomplete penetrance...
Assume that plant height in a certain plant is determined by three...
If a trait has a heretability (h2) = 0.15, then the trait is...
In mice, the allele for agouti color (A) is dominant to the allele for...
In mice, the allele for agouti color (A) is dominant to the allele for...
In the type of gene interaction called gene suppression, an individual...
Among the viable progeny of the cross of two yellow-furred...
The expression of a gene can be altered by moving it to a new...
Himalayan coat in rabbits, where fur can be white or dark, is due to a...
If a single mutation has more that one phenotypic expression, it is...
If the phenotype is determined by the genotype of the mother, the...
The trait (dark circles or squares) illustrated by the...
The trait (dark circles or squares) illustrated by the pedigree above...
This pedigree shows a trait (dark circles or squares) caused by an...
One of the most significant exceptions to Mendel's concepts of...
A woman with blood type AB has a child with blood type AB. Which...
The trait (dark circles or squares) illustrated by the...
A mother who is blood type A has a child who is also blood type A....
In Drosophila, one recessive mutation is found that causes the fly to...
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