In karyotyping, individual chromosomes may be
distinguished from others by
a. a comparison of chromosome lengths.
b. bands produced on chromosomes by differential
staining.
c. the position of centromeres.
d. all of these.
e. none of these.
Answer: d
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Evidence of a direct relationship between genes and enzymes, including development of the one geneone
enzyme hypothesis, came from studies conducted by ____ of arginine biosynthesis in mutant stains of Neurospora.
a. Beadle and Tatum b. Griffith c. Watson and Crick d. Garrod e. Nirenberg and Leder
Which layer of the skin is composed of stratified squamous epithelium cells? a. Epidermis b. All of these choices have stratified squamous epithelium
c. Hypodermis d. Dermis e. None of these choices have stratified squamous epithelium.
Consider the Calvin-Benson cycle and the noncyclic photosynthetic pathway. Why is the cyclic pathway so
important?
What will be an ideal response?Triglycerides are
a. carbohydrates. b. nucleotides. c. proteins. d. neutral fats. e. amino acids.