Mendel called physical units responsible for the inheritance of traits "elementen." The basis for his first law is that elementen
A) separate from each other as gametes form.
B) can exist as multiple alleles.
C) are inherited in random combinations.
D) can be cloned using nuclear transfer.
A) separate from each other as gametes form.
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Albinism is a recessive disorder in which the skin and hair fail to produce pigment. The following question(s) ask you to evaluate the pedigree chart shown here in which "N" is the allele for normal pigmentation and "n" is the allele for albinism. The shaded circles for Deirdre and Shannon represent the only individuals expressing the disorder.
What is Dawn's genotype?
A. Nn B. nn C. NN D. NN or Nn
Forms of the Ras protein found in tumors usually cause which of the following?
A) DNA replication to stop B) DNA replication to be hyperactive C) cell-to-cell adhesion to be nonfunctional D) cell division to cease E) excessive cell division
Different cell lineages express different subsets of genes, resulting in _____
a. epigenetics b. selective genetics c. differentiation d. morphogenic e. assimilation
Charlene loved to eat raw garlic in various dishes. She didn't notice any strong smell, so she couldn't understand why others didn't want to be around her. What sensory phenomenon is she demonstrating?
A) action potentials B) receptor potentials C) accommodation D) sensory adaptation