The R and S genes are linked and 10 map units apart. In the cross R s / r S × r s / r s what fraction of the progeny will be R S / r s?
A) 5%
B) 10%
C) 25%
D) 40%
E) 45%
A) 5%
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An individual who is heterozygous for cystic fibrosis ___
A. will have children who are all carriers of cystic fibrosis B. has cystic fibrosis C. is a carrier D. cannot have children with cystic fibrosis
A DNA microarray (also called a DNA chip) can be used to ________
A) isolate genes from eukaryotic cell nuclei B) scan a population of nucleic acids for abundance and mutations C) assay protein output from a genomic database D) mutate genes of interest E) trap genes that are both active and inactive
Which infective agent and disease are INCORRECTLY paired?
a. chancroid – Haemophilus ducreyi b. genital warts – Mycoplasma genitalium c. syphilis – Treponema pallidum d. trichomoniasis – Trichomonas vaginalis
The special dyes used in fluorescence microscopy that absorb light at one wavelength and emit light at a different wavelength are called ________.
Fill in the blank(s) with the appropriate word(s).