Tunicates are ____ in the phylum ____
a. echinoderms; Echinodermata
b. freshwater fish; Chordata
c. urochordates; Chordata
d. urochordates; Echinodermata
e. echinoderms; Chordata
c
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A specific marker with a single peak indicates that the individual is ________ with respect to that particular STR marker
a. homozygous b. heterozygous
In humans, hair texture is an incompletely dominant trait. Curly is the dominant genotype, wavy is heterozygous, and
straight hair is recessive. What is the probable phenotypic ratio for a cross between a man with wavy hair and a woman with curly hair? a. All wavy hair b. 3/4 wavy hair; 1/4 straight hair c. 1/2 wavy hair; 1/2 curly hair d. All curly hair e. 1/4 curly hair; 1/2 wavy hair; 1/4 straight hair
Which action is unable to produce variation?
A. Crossing over B. Random alignment of chromosomes during meiosis C. Asexual reproduction D. Genetic recombination of alleles E. Sexual reproduction
The genetic disorder followed through the pedigree shown is
a. recessive and X-linked. b. recessive and autosomal. c. dominant and X-linked. d. dominant and autosomal.