For independent assortment of alleles for two different genes to occur, where must the genes be located?
What will be an ideal response?
The genes must be on different chromosomes.
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Chemical elements other than carbon, hydrogen, oxygen, and nitrogen that are required in the diet and must be obtained from the food an animal eats are otherwise known as ____
Fill in the blank with the appropriate word.
A poorly understood, yet promising type of vaccine that causes the host to produce microbial antigens for a short time involves the use of
A. subunits. B. DNA. C. alum. D. toxoids. E. glycoproteins.
In influenza virus, antigenic shift
A. results from reassortment of genomes when two different strains of flu viruses infect the same cell. B. can result in major epidemics or pandemics. C. results from the accumulation of mutations in HA and NA in a single strain of flu virus. D. results from reassortment of genomes when two different strains of flu viruses infect the same cell and can result in major epidemics or pandemics.
The synthesis of thyroid hormone requires ____
a. sodium b. calcium c. iodide d. phosphate e. potassium