According to the principle of segregation, a heterozygous plant with alleles Aa will produce:
A. gametes with only the A allele.
B. gametes with only the a allele.
C. 50% of gametes with the A allele and 50%
of gametes with the a allele, on average.
D. gametes in the ratio of 3 A alleles:1 a
allele.
E. some gametes with the A allele and some
with the a allele, but in no predictable ratio.
C
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Which reason does not explain the presence of bicarbonate in seawater as being important? a. Bicarbonate makes seawater slightly alkaline
b. Bicarbonate is able to release hydrogen ions in the water. c. Bicarbonate is able to maintain a stable environment for marine organisms. d. Bicarbonate is able to maintain pH levels at a relatively constant value.
How many HLA haplotypes does each human have?
a. one b. two c. three d. four e. five
After finding a new medicinal plant, a pharmaceutical company decides to determine if the plant has genes similar to those of other known medicinal plants. To do this, the company annotates the genome of the new plant to _____
A) determine what proteins are produced B) determine what mRNA transcripts are produced C) identify genes and determine their functions D) identify the location of mRNA within the plant cells
On October 29, Barbara volunteered for a study group for her microbiology class. On October 30, she felt fine. On November 1, Barbara developed a "scratchy throat" when she swallowed. On November 2, Barbara had a headache, runny nose, and watery eyes. She was fully recovered on November 7. During which time was Barbara in the prodromal period?
A) October 30 B) November 1 C) November 2 D) November 7