The yeast Saccharomyces cerevisiae can grow as haploid or diploid cells. You have two haploid yeast strains that each carry recessive mutations that affect regulation of the genes required for galactose metabolism. One strain has a deletion of the region of the genome on chromosome II that lies between the GAL1 and GAL10 genes (deltaUAS). The other strain carries a mutant allele of the GAL80 gene on chromosome XIII that produces no functional GAL80 protein.(c) You cross these two strains together to get diploid progeny. Write down the diploid genotype. Expression of the GAL1 and GAL10 genes in the progeny will beYou then induce meiosis to produce haploid progeny. Write down the haploid progeny genotypes.(d) What proportion of the haploid progeny (expressed as a decimal) will have permanently repressed expression of GAL1 and GAL10? (e) What proportion of the haploid progeny (expressed as a decimal) will have inducible expression of GAL1 and GAL10 in the presence of galactose? (f) What proportion of the haploid progeny (expressed as a decimal) will have contstitutive expression of GAL1 and GAL10?

What does spontaneous generation mean?

True or false: the breakup of pangea resulted in warm wet global climates?

Will mark brainliest! 1.) jan’s sister and mother have both had breast cancer. she is wondering if she should undergo genetic testing to check for a mutation of the brca1 gene. a mutation in the brca1 gene is commonly associated with, but not guaranteed to cause, breast cancer. the presence of a mutation increases a patient’s chances of getting breast cancer to about 85 percent, compared to a 13 percent risk in the general population. costs may vary, but most labs charge patients or their insurance companies less than $3,000 to sequence the brca1 to look for mutations. do you think that jan should undergo genetic sequencing? explain your answer. (2 points) what are potential pros and cons of having such tests done? (5 points) describe how the availability of genetic sequencing can affect the frequency of genetic diseases in individuals and populations. (3 points) 2.) scientists have developed genetically engineered plants that are pest-resistant. by adding genes to the plant’s dna, they become toxic to insects (but not to plants or animals). this means that these plants may not need to be sprayed with pesticides to ward off the insects. would you be willing to eat these genetically altered crops? explain your answer. (5 points) what are some possible impacts (positive or negative) of this genetically engineered plant on the environment, society, and individuals? (5 points)