Saccharomyces cerevisiae is a ____Budding yeast have two mating types: _______.-cells. The expression of________. observed in this experiment after a _______. cross was made.

Biology: The Unity and Diversity of Life (MindTap Course List)
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Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
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Chapter12: Meiosis And Sexual Reproduction
Section: Chapter Questions
Problem 2DAA: BPA and Abnormal Meiosis In 1998, researchers at Case Western University were studying meiosis in...
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  1. Saccharomyces cerevisiae is a ____Budding yeast have two mating types:

_______.-cells. The expression of________. observed in this experiment after a

_______. cross was made.

  1. Diploid cells contain_________. of the number of chromosomes found in haploid

cells. The number of yeast haploid strains used in this experiment to make the dihybrid

cross is _________

  1. When a diploid cell undergoes mitosis, the number of chromosomes in the resulting

cells ________ When a diploid cell undergoes meiosis, the number of chromosomes in the resulting cells are __________ The result of __________. is the formation of gametes.

  1. Alleles are alternate forms of a __________ A heterozygous organism for a specific trait

will express the phenotype determined by the _________. allele.

  1. If two alleles separate during meiosis and gamete formation, then this is an example of

Mendel’s Law of _________

  1. In yeast, the alleles for colony colour and tryptophan dependence are located on

different chromosomes. But, if the alleles for colony colour and tryptophan dependence

were closely linked on the same chromosome, inheritance of these traits ____________.

follow Mendel’s Law of ______________

  1. In this experiment, __________. plates were used to differentiate between red and

white diploid yeast colonies. If a diploid colony grew on the MIN plate, this means the

yeast Choose an item. synthesize ___________

  1. List the possible genotypes of the parents if a cross resulted in a F1-generation

consisting of 50% white colonies and 50% red colonies: _________________

  1. List the possible genotypes of the parents if the cross resulted in a F1-generation

consisting of 100% tryptophan independent colonies: ______________

  1. Give the genotypes and their percentages resulting from a cross between a

homozygous independent tryptophan parent and a heterozygous tryptophan

independent parent: _______________

  1. If all 100% of the yeast colonies resulting from a monohybrid cross are pink (neither red

nor white), this would be an example of _______________

  1. Following a RrTt x RrTt cross, state the fraction of the offspring predicted to have a genotype that is heterozygous for both characteristics Click here to enter text. and the fraction that would be homozygous for both characteristics __________________
  2. j) What is a dominant trait versus a recessive one?
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