A lichen is sometimes a symbiotic association between a proteobacterium and a fungus
Indicate whether the statement is true or false.
ANS: F, cyanobacterium
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The science that applies powerful computational tools to DNA and protein sequences for the purpose of analyzing, storing, and accessing the sequences for comparative purposes is known as
A) metagenomics. B) proteomics. C) bioinformatics. D) genomics.
Calico cats are female. The patches of fur color result from X inactivation, silencing fur color genes on one X chromosome or the other. However, extremely rarely, there can be a male calico. Describe the genetics necessary for a male calico cat.
A. XX with a translocation of the SRY gene onto one of the X chromosomes. B. XY with a mutation in the SRY gene. C. XX with a translocation of the testosterone gene onto one of the X chromosomes. D. XY with a mutation in the estrogen gene. Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about calico cats? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
If black fur color is controlled by a dominant allele (B) and brown by its recessive allele (b), give the
genotypes of the parents and offspring of a cross of a black male with a brown female that produces 1/2 black offspring and 1/2 brown offspring. What will be an ideal response?
Severe combined immunodeficiency occurs when
a. T cells are improperly formed. b. B cells are improperly formed. c. an individual has no adaptive immunity. d. all of the above occur.