Which is an example of a SNP? (Select all that apply.)
A) A single base near the neurofibromatosis gene can be a G or a T; phenotype is not affected.
B) A single base change in the gene for ? globin changes an amino acid and results in sickle cell anemia.
C) Individuals with Huntington disease have more trinucleotide repeats in the coding region of the HD gene than normal individuals.
D) The most common cystic fibrosis allele has a deletion of three base pairs in the coding region of the CFTR gene.
A) A single base near the neurofibromatosis gene can be a G or a T; phenotype is not affected.
B) A single base change in the gene for ? globin changes an amino acid and results in sickle cell anemia.
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Cholera is an example of a pandemic disease that
A) has multiple wild animal reservoirs and is thus difficult to eradicate. B) spreads from a common source and could be controlled with adequate clean water and waste sanitation measures. C) is spread through direct contact and has only a human reservoir. D) has recently emerged due to overcrowding in urban centers.
Eugenics is the attempt to improve the human species by ____________________
Fill in the blank(s) with correct word
The protein Sonic Hedgehog (SHH) plays a role in specifying the identity of digits (such as fingers and toes) in mammals. Several digits arise directly from cells that both express and respond to secreted SHH. What type of signaling would this be considered?
A. Direct contact B. Paracrine C. Endocrine D. Synaptic E. Autocrine
Which cells in our body possess the MHC II protein?
A. Erythrocytes B. Neurons C. Thymus cells D. Macrophages E. Nasal epithelial cells