If a man expresses an X-linked recessive trait, ____
a. all of his brothers will also express it
b. his father transmitted the trait to him
c. his father carried the trait
d. all of his sisters will also express it
e. his mother was heterozygous or homozygous for the trait
e
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Bacillus species are facultative anaerobes that can use nitrate as a terminal electron acceptor.
Answer the following statement true (T) or false (F)
The most common mutant allele of the PAH gene, which is responsible for the metabolic disorder PKU, has a SNP in the splice donor site of one intron. What is the simplest way to detect this allele?
A) PCR using genomic DNA as template and two primers, one on either side of the SNP, followed by gel electrophoresis B) PCR using genomic DNA as template and two primers, one complementary to the region containing the SNP, followed by gel electrophoresis C) PCR using two primers, one on either side of the SNP, followed by sequencing the PCR products D) Direct exome sequencing using a microarray E) Whole-genome sequencing
During phagocytosis, intracellular digestion begins as soon as the phagosome is formed.
Answer the following statement true (T) or false (F)
Omnivores feed on
a. animals. b. plants. c. fungi. d. bacteria. e. any of these.