__________ are alternative forms of a gene that govern the same feature, such as eye color, and
occupy corresponding positions on homologous chromosomes.
a. Alleles
b. Loci
c. Homozygotes
d. Coupled traits
e. None of these
A
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All multicellular organisms have:
A. organs and organ systems. B. specialized and differentiated cells. C. predators. D. mechanisms for cell-cell adhesion.
Antiparallelism means that
A) the two strands of a DNA molecule run in opposite directions. B) the DNA double helix twists first one way, then the other. C) the DNA bases are sometimes on the outside of the molecule. D) the DNA molecule cannot dissolve in water.
Rosalind Franklin died from ovarian cancer at the age of 37. Her cancer was probably caused by DNA mutations that
arose from _____.
a. extensive exposure to long wavelength radiation b. contaminated DNA samples c. chemical exposure d. unrepaired DNA replication errors e. extensive exposure to x-rays
Discuss some of the possible ways in which nonsense mutations can potentially be suppressed in a cell
What will be an ideal response?