Which of the following is NOT found in an arteriole?
a. elastic layer
b. basement membrane
c. smooth muscle
d. valve
e. endothelium
D
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Which pathway is affected by an inherited mutation in the ATM gene?
A) nucleotide excision repair pathway B) photoreactivation C) p53 repair pathway D) reactivation repair pathway E) UV repair pathway
Individuals infected with HIV produce antibodies, but these antibodies do not prevent progression to Phase II and Phase III of infection
Indicate whether the statement is true or false
TRAIT SPECIESABCDE111011211010311100410000511100611011The table shows the distribution of traits (A-E) in six extant species (1-6). A "0" indicates the ancestral condition, while "1" indicates the derived condition. Based on this data, which species would be considered the outgroup?
A. 1 B. 2 C. 3 D. 4 E. 5
There are between 20,000 and 25,000 genes in the human genome, yet our cells are capable of producing more than 90,000 different proteins. How is this possible?
A) Introns are spliced back together to form mRNAs. B) Micro-RNAs can also be used to make proteins. C) Primary transcripts can be edited in different ways by alternative splicing to produce different mRNAs. D) Many genes are actually yet to be discovered.