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Genetics

Genetics

Genetics: Mendelian Freckles are Not a Thing True or False

1. In what inheritance patterns does the genotypic ratio match the phenotypic ratio?Codominance and incomplete dominance
2. Alleles are different _______ of a gene.fragments
3. The presence of freckles is a dominant Mendelian trait in humans. If your cousin has freckles, but her husband doesn’t, what are the chances that their baby will have freckles?Either 50% or 100%
4. Hemophilia is an X-linked recessive bleeding disorder. If a normal woman whose father was a hemophiliac marries a normal man, what are the chances of their children having the disease?4/4
5. A cross between a tomato cultivar producing fruit weighing, on average, 4 oz and another producing fruit weighing, on average, 6 oz generates offspring plants bearing fruits that weigh, on average, 8 oz. A possible explanation for this observation could beepistatic genetic variance
6. A wild type phenotypeis the most common phenotype in a population
7. If John’s grandmother on his mother’s side had a mitochondrial disorder, how likely is he to inherit it?0%
8. Mutations in the Rb gene can cause retinoblastoma, a cancer that affects the retina. However, not every individual carrying the disease-causing mutation develops the disease. This phenomenon is known asincomplete penetrance
9. In an attempt to reduce the number of bullocks born, which are no use to him for producing milk, a farmer has paid to have his diary herd artificially inseminated with sperm that has had half the sperm carrying a Y chromosome removed. What female-to-male ratio would you expect to see in the calves produced from this procedure?3:1
10. A cat breeder has two Manx cats. What phenotypic ratio of offspring can she expect after mating them together?All tailed

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