The location of specific genes
A.) cannot be determined with current biological methods.
B.) has only rarely been determined.
C.) can be mapped to specific spots on chromosomes.
D.) has been found only for humans.
Ans: C.) can be mapped to specific spots on chromosomes.
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Protists and bacteria are grouped into different domains because _____
A) protists eat bacteria B) bacteria are not made of cells C) protists have a membrane-bounded nucleus, which bacterial cells lack D) bacteria decompose protists E) protists are photosynthetic
Mucus-secreting cells and cilia in the bronchi serve what function?
a. help air exchange b. trap and remove bacteria and airborne particles c. destroy inhaled bacteria d. warm inspired air e. increase carbon dioxide removal
A lizard with a striped tail and a normal head crossed with one having a normal tail and a spotted head produce all
normal (no stripes or spots) F1 progeny. What progeny would be expected to be produced by mating either of the parental lizards with another that had a striped tail and spotted head, if the genes conferring stripes and spots were close together on the same chromosome? a. equal numbers of normal, striped, spotted and striped, and spotted b. 3 striped : 1 spotted c. mostly progeny that are striped or spotted d. mostly progeny that are normal or striped and spotted e. 9 normal : 3 striped : 3 spotted : 1 striped and spotted
In nonvascular plants, sperm are formed in the archegonia by meiosis
Indicate whether the statement is true or false