A modification of a gene or chromosome that occurs during gamete formation or early development that permanently alters the expression of that gene for the lifetime of the individual is called
A. maternal effect
B. epigenetic inheritance
C. epistasis
D. extranuclear inheritance
E. sex-linked inheritance
B. epigenetic inheritance
You might also like to view...
A variable trait in corn is the presence or absence of knobs at particular sites on some chromosomes. The allele present on each chromosome determines whether or not that chromosome has a knob. Suppose that one member of each of two pairs of homologs in a corn plant has a knob. If this plant is crossed with a knobless plant, what percentage of the offspring is expected to have only knobless chromosomes?
A) 100% B) 75% C) 50% D) 25% E) 0%
All of the following are true of the second law of thermodynamics EXCEPT:
(A) the amount of useful energy decreases. (B) spontaneous changes result in a more uniform distribution of energy. (C) all chemical reactions release more energy than they consume. (D) there is a natural tendency toward greater disorder of the organization of matter. (E) NONE of the above
Which of the following structures can perform all the activities required for life?
A) DNA molecules B) cells C) organelles D) nuclei
Ribosomes are the site of
What will be an ideal response?