13 Jun BIO 133 -Three fish species are models for understanding different aspects of genes
Question
1. Linkage analysis determines
A.
which two chromosomes two different genes are on by using vectors
B.how close two genes are on the same chromosome by recombination
C.whether two species are related by analyzing their genomes
D.the mutations in an individual by crossing with another and looking at the offspring
2. Three fish species are models for understanding different aspects of genes. Read the descriptions and decide what sort of genetics each is used for.
A. Developmental genetics
B. Genome analysis
C. Evolutionary genetics of skeletal structures
1. Takifugu rubripes – A poisonous marine pufferfish; has an unusually small genome compared to other vertebrates but still carries all essential genes. ________
2. Danio rerio – The zebrafish common to amateur aquaria. Many color morphs are available, they breed readily, and embryos are transparent. ________
3. Three-spined stickleback – Stickleback species have variable structure of the bony vertebrae and different numbers of spines on the back. ________
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