GN 311 MODULE 1 EXAM QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026

GN 311 MODULE 1 EXAM QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026 Exam 1 - Answers know chi square analysis An organism is described as 2n = 60. How many chromatids per chromosome are in one cell during G2 of interphase? - Answers 2 An organism is described as 2n = 60. How many chromosomes are in one cell during G2 of interphase? - Answers 60 An organism is described as 2n = 60. How many chromosomes are in one mitotic cell during metaphase? - Answers 60 An organism is described as 2n = 60. How many chromosomes are in one meiotic cell during telophase 1? - Answers 60 In cucumbers: Dull fruit (D) is dominant to glossy (d) Orange fruit (R) is dominant to cream (r) Bitter cotyledons (B) are dominant to nonbitter (b) A cucumber with the genotype ddRrBb was crossed to a cucumber with the genotype DdRrBb using a branch diagram, determine the probability that an offspring from this cross will be dull and cream with nonbitter cotelydons? (Type in as a decimal and round to 6 decimal digits.) - Answers 0.03125 How many different gametes does a parent with the following genotype produce? aaBbddEe - Answers 4 How many different genotypes are found among the progeny of the cross listed below? AaBbddEe x AabbDdEe - Answers 36 How many different phenotypes are found among the progeny of the cross listed below? AABBDdEe x AabbDdEe - Answers 4 What is the probability that the first offspring from the cross listed below will show the dominant phenotype for all loci? (type as a decimal and round to 5 decimal places) aaBBDdEe x AAbbDdEe - Answers 0.5625 What is the probability that the first offspring from this cross: AABbDdee x aaBbDdEe will be a son with the genotype: AaBBDDee Type your answer as a decimal and round to 6 decimal places. - Answers 0.015625 In Smurfs, dwarf (T) is dominant to tall (t), pink (B) is dominant to blue (b), and happy (G) is dominant to gloomy (g). All loci are autosomal and not linked. The phenotypes of parents and their progeny are given for several crosses below. Determine the most likely genotypes for each parent and write them in the appropriate spaces below. Note that the parents may not be pure breeding. Female parent genotype: Dwarf, Blue, Happy Male parent genotype: Tall, pink, gloomy progeny numbers and phenotypes: 38 Dwarf, Pink, Happy 36 Dwarf, Pink, Gloomy 35 Tall, Pink, Happy 37 Tall, Pink, Gloomy - Answers Female Parent Genotype: Height locus: Tt Color locus: bb Disposition locus: Gg Male Parent Genotype: Height locus: tt Color locus: BB Disposition locus: gg We think that dwarfism in river birch might be a simple Mendelian trait. We have taken a pure breeding normal plant and crossed it with a a pure breeding dwarf plant. The resulting F1 plants were normal height. The F1 plants were selfed and the F2 data is presented below: Normal River Birch 803 Dwarf River Birch 302 Perform a chi square analysis on this data using the following hypothesis: The mode of inheritance for height in river birch is simple Mendelian. What is the calculated chi-square value? Round to three decimal places. - Answers 3.200 An organism is described as 2n = 6. How many chromosomes are in one mitotic cell during prophase? - Answers 6 An organism is described as 2n = 6. How many chromatids per chromosome are in one meiotic cell during Anaphase 2? - Answers 1 An organism is described as 2n = 6. How many chromatids per chromosome are in one meiotic cell during Anaphase 1? - Answers 2 An organism is described as 2n = 6. How many chromatids per chromosome are in one mitotic cell during metaphase? - Answers 2 In cucumbers: Dull fruit (D) is dominant to glossy (d) Orange fruit (R) is dominant to cream (r) Bitter cotyledons (B) are dominant to nonbitter (b) A cucumber with the genotype DdRRBb was crossed to a cucumber with the genotype DdRrBb using a branch diagram, determine the probability that an offspring from this cross will be dull and orange with bitter cotelydons? (Type in as a decimal and round to 6 decimal digits.) - Answers 0.5625 How many different gametes does a parent with the following genotype produce? AABBDdEe - Answers 4 How many different genotypes are found among the progeny of the cross listed below? aabbDdee x AaBbDdEe - Answers 24 How many different phenotypes are found among the progeny of the cross listed below? AaBbddEe x AaBbDdEe - Answers 16 What is the probability that the first offspring from the cross listed below will be heterozygous for all loci? (type as a decimal and round to 5 decimal places) AaBbddEe x aaBbDdEE - Answers 0.0625 What is the probability that the first offspring from this cross: AabbDdEe x AAbbDdEe will be a son with the genotype: AAbbDdEE