Identify the mutation below that would be passed on to a living, fertile offspring if it happened in a parent.(1 point)
Responses
a silent mutation in the genes of the pancreas cells coding for insulin
a silent mutation in the genes of the pancreas cells coding for insulin
DNA substitution errors that take place in somatic, or body, cells resulting in skin cancer
DNA substitution errors that take place in somatic, or body, cells resulting in skin cancer
a chromosomal deletion that affects a blood cell, deactivating a crucial gene involved in development
a chromosomal deletion that affects a blood cell, deactivating a crucial gene involved in development
an insertion mutation in an egg cell that deactivates a gene for hair color
an insertion mutation in an egg cell that deactivates a gene for hair color
Methylation is an example of(1 point)
Responses
gene mapping
gene mapping
DNA replication
DNA replication
gene editing
gene editing
epigenetics
epigenetics
A scientist observes a population of cheetahs on the plains in southern Africa and noticed that cheetahs have very little genetic variation. The scientists claims that the cheetahs are susceptible to extinction as a result of climate change. What is the name of the effect the scientist observed and why is it a concern ?(1 point)
Responses
Disaster effect, because the cheetahs have mutated to produce ineffective proteins
Disaster effect, because the cheetahs have mutated to produce ineffective proteins
Substitution mutation, because the these mutations cannot be passed to offspring
Substitution mutation, because the these mutations cannot be passed to offspring
Frameshift mutation, because it only produces ineffective proteins
Frameshift mutation, because it only produces ineffective proteins
Bottleneck effect, because environmental stresses affecting one cheetah could affect them all
Bottleneck effect, because environmental stresses affecting one cheetah could affect them all
Identify the scenario that could potentially result in new combinations of DNA in the offspring of the individual.(1 point)
Responses
A spontaneous mutation to DNA replication in a lung cell during mitosis.
A spontaneous mutation to DNA replication in a lung cell during mitosis.
Sister chromatids cross over during mitosis in a heart cell.
Sister chromatids cross over during mitosis in a heart cell.
A pair of homologous chromosomes in a sperm cell fail to separate during meiosis.
A pair of homologous chromosomes in a sperm cell fail to separate during meiosis.
UV radiation causes a mutation in a skin cell resulting in melanoma.
Sister chromatids cross over during mitosis in a heart cell.
Body size in mice (length from nose to base of tail) is controlled in part by genetics. The following data shows the number of mice grouped by lengths:
Length Group Number of Mice
Very small (4-5 cm) 2
Small (5-7 cm) 6
Average (7-10 cm) 15
Large (10-12 cm) 7
Very large (12-13 cm) 1
Based on this data and your knowledge of inheritance patterns, identify the inheritance pattern that this trait follows in mice.
(1 point)
Responses
polygenic
polygenic
pleiotropic
pleiotropic
incomplete dominance
incomplete dominance
complete dominance