At the end of the Gram staining procedure, Gram-positive bacteria will be:
A) blue-to-purple.
B) green.
C) orange.
D) pink-to-red.
Answer: A
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Meerkats are small desert mammals that live in groups of 20–50 animals. You observe one meerkat standing upright on a stump, looking around, while other meerkats forage for food. You hypothesize that this is an example of kin selection
What additional information would you need to know to evaluate your hypothesis? A. the body size of this meerkat relative to other members of the group B. the gender of this meerkat as well as that of all other members of the group C. the degree of genetic relatedness of this meerkat to all members of the group D. all other activities of this meerkat as well as those of all other members of the group E. the foraging success of this meerkat as well as that of all other members of the group
Two genes, A and X, exhibit incomplete linkage. The frequency of each parental gamete (AX and ax) is 45%. What is the approximate frequency of the Ax gamete?
What will be an ideal response?
Which is not true?
A. Eukaryotic genomes are more complex than prokaryotic genomes. B. Humans possess roughly 100,000 genes. C. Genes found in humans and other eukaryotic organisms appear to have resulted from transfer of genes from bacteria to eukaryotes. D. Genes are equally distributed between chromosomes and equally distributed along the length of a chromosome.
Select all of the choices that apply to a gene carrier.
a. possesses but does not express the allele in question b. typically has a homozygous dominant genotype c. typically has a heterozygous genotype d. typically has a homozygous recessive genotype e. both possesses and expresses the allele in question