6. Isolating spontaneous yeast mutants is typically performed in haploid rather than diploid strains. What is...
6. Isolating spontaneous yeast mutants is typically performed in haploid rather than diploid strains. What is the main rationale for doing this?
Homework Answers
Isolation of spontaneous yeast mutants is generally performed in haploid strains. This is due to the fact that it is easier to identify recessive mutants in the haploid background. Haploid strains contain a single set of the genome. So, mutation of the single allele results in the phenotype for a recessive allele
.
If we take a diploid yeast strain, both the alleles have to be
mutated for the recessive phenotype to appear. So, the diploid M1
population is allowed to self to produce M2 so that recessive
allele can attain homozygosity i.e. we have to look for the
recessive phenotype in the next generation. If we use a haploid
strain, we can observe the phenotype in the M1 generation
itself.
Dominant mutations can appear in
both homozygous and heterozygous conditions.
Add Answer to:
6. Isolating spontaneous yeast mutants is typically performed in
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What mutants are in the same complementation group as M2? Select as many as apply. Question...
What mutants are in the same complementation group as
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Bio 121 I need to make (yeast fermentation) lab report. This is the lab experiment and...
Bio 121
I need to make (yeast fermentation) lab
report.
This is the lab experiment and results:
This is a guide to making the lab report:
General Biology BIO121 Yeast Fermentation Lab Introduction Organisms stay alive by the utilization of energy through metabolism. The energy acquiring pathways in photosynthesis convert radiant energy from the sun into the chemical bond energy of carbohydrates. This photosynthetic process is limited to the producers or autotrophs, which include plants, photosynthetic bacteria and some protists....
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What mutants are in the same complementation group as
M4? Select as many as apply.
Question 17. Saccharomyces cerevisiae (also called budding yeast or baker's yeast) normally makes LARGE colonies on the Petri dish. The fungus can exist as either a haploid or as a diploid. As a geneticist, you decide to isolate haploid mutants with altered size of colonies. You collect 6 such haploid mutants, which you arbitrarily name M1, M2, M3, M4, M5, and M6. To determine how...
What mutants are in the same complementation group as
M2? Select as many as apply.
Question 17. Saccharomyces cerevisiae (also called budding yeast or baker's yeast) normally makes LARGE colonies on the Petri dish. The fungus can exist as either a haploid or as a diploid. As a geneticist, you decide to isolate haploid mutants with altered size of colonies. You collect 6 such haploid mutants, which you arbitrarily name M1, M2, M3, M4, M5, and M6. To determine how...
please help with part A and B.
2. A yeast geneticist isolates two different haploid mutant yeast strains, Strain A and Strain B, which cannot grow unless the amino acid leucine is added to the growth media. Wild-type yeast strains can make their own leucine and do not require that it be added to the growth media. The geneticist discovers that each mutant yeast strain contains a single recessive mutation that leads to the observed leucine-requiring phenotype. When she crosses...
Haploid yeast cells that preferentially repair double-strand breaks by homologous recombination (rather than by non-homologous end joining) are especially sensitive to agents that cause double-strand breaks in DNA. If the breaks occur in the G1 phase of the cell cycle, most cells will die; however, if the breaks occur in the G2 phase, a much higher fraction of cells survive. Why do you suppose this is?
#5&6
5. Explain why we use expected earnings rather than last period's earnings in the PE multiple approach to earnings. 6. What is the rationale for the price to sales multiple when estimating the intrinsic value of a stock?
Bio 121
I need to make (yeast fermentation) lab
report.
This is the lab experiment and results:
This is a guide to making the lab report:
General Biology BIO121 Yeast Fermentation Lab Introduction Organisms stay alive by the utilization of energy through metabolism. The energy acquiring pathways in photosynthesis convert radiant energy from the sun into the chemical bond energy of carbohydrates. This photosynthetic process is limited to the producers or autotrophs, which include plants, photosynthetic bacteria and some protists....
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