What is the difference between a chromosome and a chromatid?
What will be an ideal response?
A chromosome is a linear DNA molecule. Once replicated, each chromosome is composed of two
exact copies called sister chromatids.
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At equilibrium the allele and genotype frequencies of a population change over time
Indicate whether the statement is true or false
Which of the following statements is
CORRECT about the nature of enzymes?
a. All enzymes are proteins. b. Most enzymes are RNAs. c. Some enzymes are carbohydrates. d. Most enzymes are proteins, but some are RNAs. e. Most enzymes are proteins, but some are carbohydrates.
Fats that are manufactured from vegetable oils found in many processed food are known as ____
a. saturated fats b. unsaturated fates c. trans fatty acids d. linoleic acid e. omega-6 fatty acids
Which of the following is the correct sequence of events in an action potential after stimulation of a neuron?
a. K+ move sin; Na+ moves out. b. Na+ moves in; K+ moves out. c. Na+ moves in; Ca++ moves out. d. Na+ moves in; Cl- moves out. e. K+ moves in; organic anions move out.