A plant of genotype CCdd is crossed to a plant of genotype ccDD; the F1 offspring are then testcrossed to a ccdd
plant. If the genes are on different chromosomes, what percentage of the offspring will be ccdd?
a. 10
b. 20
c. 25
d. 30
e. 50
ANSWER: c
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Members of the phylum ____ are considered by many researchers to be the living plants most closely
related to the first land plants, based on their morphology and mitochondrial gene sequence data.
a. Hepatophyta b. Pterophyta c. Bryophyta d. Lycophyta e. Anthocerophyta
Insulin is produced and released from the exocrine pancreas
Indicate whether the statement is true or false.
Which human cell type can be over a meter in length?
a. neurons b. chondrocytes c. columnar epithelial cells d. skeletal muscle cells e. adipocytes
Which of the following statements regarding shiga toxin-producing E. coli is correct?
A. It synthesizes shiga endotoxin from the E. coli chromosome. B. It synthesizes shiga exotoxin from a bacteriophage. C. It synthesizes shiga exotoxin from the E. coli chromosome. D. It synthesizes shiga endotoxin from a bacteriophage.