The growth rate of a given species of microorganism is dependent on the composition of the medium in which it is grown.
Answer the following statement true (T) or false (F)
True
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Genetic studies of an animal show that eye color is controlled by an autosomal gene with the dominant
allele (R) for red eye color and the recessive allele (r) for yellow eye color. A second autosomal gene has the dominant allele (T) leading to paws with thumbs while the recessive allele (t) codes for paws without thumbs. The genetic cross RRTT ? rrtt creates offspring with genotype RrTt. One of those dihybrids is mated in a testcross (RrTt ? rrtt). If the two genes are completely linked (no recombination occurs between them), then the testcross should produce offspring with the phenotype ratio
a. 3 red-eyed with thumbs: 1 yellow-eyed without thumbs. b. 1 red-eyed with thumbs: 1 yellow-eyed with thumbs: 1 red-eyed without thumbs: 1 yellow-eyed without thumbs. c. 1 red-eyed with thumbs: 1 yellow-eyed without thumbs. d. 9 red-eyed with thumbs: 3 yellow-eyed with thumbs: 3 red-eyed without thumbs: 1 yellow-eyed without thumbs. e. 1 yellow-eyed with thumbs: 1 red-eyed without thumbs.
When there have been no non-disjunction errors and an individual has the appropriate number of chromosomes for their species, what is this condition called?
a. aneuploidy b. trisomy c. euploidy d. polyploidy
The living, or ________, and nonliving, or ________, components of the environment interact within an ecosystem
Fill in the blank(s) with correct word
The species concept defined as a group of organisms that are capable of interbreeding to produce fertile offspring is ________
A) the morphospecies concept B) the phylogenetic species concept C) the biological species concept D) the ecological species concept