The correct order of the basic steps of virus multiplication is ________
a. attachment, penetration, replication and then synthesis, assembly, and release
b. attachment, penetration, replication and then synthesis, release, and assembly
c. penetration, attachment, replication and then synthesis, assembly, and release
d. attachment, penetration, assembly, replication and then synthesis, and release
a
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A gradual rise in numbers during an epidemic indicates a common source epidemic
Indicate whether this statement is true or false.
Chromosomes that look alike and carry the same sequence of genes for the same traits, such as these shown from two parents, are
A. homologous chromosomes.
B. the X and Y chromosome.
C. found in females only.
D. found in males only.
E. all the autosomes.
Answer the following statements true (T) or false (F)
1.The two main branches off the trachea are called bronchi. 2.Filter feeders are autotrophs. 3.Cows are ruminants that rely on fermenting bacteria to break down plant matter. 4.The stomach organ produces amylase to aid in starch digestion. 5.When a single-celled ciliate protist engulfs a food particle through its mouth-like oral groove, it is performing extracellular digestion.
A Punnett square is used to determine
a. probable gamete genotypes. b. possible parental phenotypes. c. possible parental genotypes. d. possible genetic outcomes of a cross.