Bile gets its yellow-green color mainly from which of the following?
A. Cholesterol
B. Bilirubin
C. Phospholipids
D. Urobilinogen
E. Bile salts
Answer: B
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________ are barrel-shaped, protein-digesting organelles in both the nucleus and the cytoplasm.
Fill in the blank(s) with the appropriate word(s).
Explain what is meant when a pregnant woman says her "water has broken." Discuss the stage of labor during which this event occurs
What will be an ideal response?
In spermatozoa, a structure called the acrosome:
a. Contains dynein arms that control sperm motility b. Contains proteolytic enzymes that function during fertilization of an ovum by sperm c. Is a focal accumulation of rough endoplasmic reticulum d. Localizes around mitochondria in the midpiece of the flagellum e. Regulates the condensation of nuclear DNA
which of the following are true statements about the genetic code? check all that apply.
a) each codon in the genetic code can stand for two or more amino acids b) the genetic code relates mRNA codons to protein structure c) the genetic code allows 20 amino acid to be coded by only 4 different nucleotides d) the genetic code is expressed as three-nucleotide long sequences called codons