Question

Ensure answers are clearly labelled a) to d). Consider the image below, representing a cell in G2 for species with 2n = 6. This individual has the genotype Aa Bb Dd EE for the four genes as indicated. Loci B and D are located on the same chromosome, 20 map units (cM) apart. a) What allele do you expect at the position indicated by the ? in the red block? (1) b) If the chromosomes are numbered using the standard convention, give the term that will describe the morphology for chromosome 2. (1) c) Which loci in this individual can result in recombination in the gametes via the process of independent assortment? (1) d) This individual can produce a pool of different gametes. List any TWO of the potential gametes which will occur at different frequencies. Give the alleles of each gamete contained within a set of brackets, and indicate the expected frequency (up to two decimals) at which that gamete would occur. (3)

          Ensure answers are clearly labelled a) to d).
Consider the image below, representing a cell in G2 for species with 2n = 6. This individual has the genotype Aa Bb Dd EE for the four genes as indicated. Loci B and D are located on the same chromosome, 20 map units (cM) apart.

a) What allele do you expect at the position indicated by the ? in the red block? (1)
b) If the chromosomes are numbered using the standard convention, give the term that will describe the morphology for chromosome 2. (1)
c) Which loci in this individual can result in recombination in the gametes via the process of independent assortment? (1)
d) This individual can produce a pool of different gametes. List any TWO of the potential gametes which will occur at different frequencies. Give the alleles of each gamete contained within a set of brackets, and indicate the expected frequency (up to two decimals) at which that gamete would occur. (3)

Ensure answers are clearly labelled a) to d).
Consider the image below, representing a cell in G2 for species with 2n = 6. This individual has the genotype Aa Bb Dd EE for the four genes as indicated. Loci B and D are located on the same chromosome, 20 map units (cM) apart.

a) What allele do you expect at the position indicated by the ? in the red block? (1)
b) If the chromosomes are numbered using the standard convention, give the term that will describe the morphology for chromosome 2. (1)
c) Which loci in this individual can result in recombination in the gametes via the process of independent assortment? (1)
d) This individual can produce a pool of different gametes. List any TWO of the potential gametes which will occur at different frequencies. Give the alleles of each gamete contained within a set of brackets, and indicate the expected frequency (up to two decimals) at which that gamete would occur. (3)

Added by Jennifer O.

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