The most common capsid morphologies are icosahedral and helical.
Answer the following statement true (T) or false (F)
True
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The ________ and ________ domains of the class II MHC protein interact to form a peptide-binding site
A) B / T B) light / heavy C) C / V D) ?1 / ?1
How is a single strand of DNA able to serve as a template for the synthesis of another strand?
a. Nucleotides pair with those of the original strand to form a new strand. b. Hydrogen bonds holding the two strands together are easy to break, allowing one strand to be a template. c. A single strand of DNA is not able to serve as a template. d. One strand of DNA directs the synthesis of a new strand on its partner. e. Both the pairing of nucleotides and the breaking of hydrogen bonds.
Gene expression is a term that relates to
A) DNA replication. B) the unique set of genes in an individual. C) the karyotype of a chromosome set. D) how genes are passed from parent to offspring. E) the flow of genetic information from DNA to proteins.
There are three alleles controlling the ABO blood types. IA and IB are codominant genes so that the combination IAIB produces the AB blood type. The third allele, i, is recessive to the other two alleles. Which of the following combinations of parents (with blood types on the left) and child (with blood type listed on the right) is NOT possible?
A. A ´ AB = B B. A ´ O = A C. A ´ B = O D. A ´ AB = O E. A ´ AB = B