#HUMAN DOMINANT TRAITS SKIN#
What is the genotype of the female snake? Heterozygote (A/a) Piebald spotting is a condition found in humans in which there are patches of skin that lack pigmentation. This cross produces 10 normal-colored and 11 albino offspring. Which phenotype is controlled by the dominant allele? normal-colored A normal-colored female corn snake is crossed with a pure-breeding tester male. When these F1 progeny snakes are crossed among themselves, they produce 32 normal-colored snakes and 10 albino snakes. TERMS IN THIS SET (17) An albino corn snake is crossed with a normal-colored corn snake.
A Which of the following is LEAST likely to be the result of a genetic mutation?Ī plant that produces fewer seeds than normal C +24 more terms What do plants with mutations have in common, regardless of whether the mutations were brought about naturally or artificially?Īll plants with mutations have had structural changes to the genes on their chromosomes.Īll plants with mutations can be used as parents that generate offspring with only beneficial traits.Īll plants with mutations have been exposed to chemicals or radiation that caused mutations. Mutant plants from these seeds with desirable traits are then bred with other plants. Because of this, mutations like this are one cause of _.Ī lack of change in the gene pool A A method called "mutation breeding" involves causing genetic mutations using artificial means such as exposing plant seeds to chemicals or radiation. If mutations happen in the DNA of a parent's sex cell (eggs or sperm), then the new version can be passed down from parent to child. How did a change from the normal red blood cell shape MOST likely originate?įrom prolonged exposure to chemicals D Mutations in DNA cause new versions of genes.
Sickle cell anemia is passed from parent to offspring. Normal red blood cells are round, but the red blood cells of a person with sickle cell anemia are shaped like crescent moons. TERMS IN THIS SET (28) Sickle cell anemia is a condition that affects the shape of a person's red blood cells.
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