Which of the following statements are true regarding the F2 offspring of a mapping cross for three genes on the same chromosome? A Recombinant allelic combinations will occur less frequently when genes are further apart. A assuming all three genes are genetically linked, the most common classes of F2 offspring will be those containing parental allelic combinations the recombination rate calculated between any pair of genes will never exceed 5096 F2 offspring will tend to inherit all dominant or all recessive alleles from the triheterozygous parent the alleles of each gene will assort independently making parental and recombinant allelic combinations equally likely among the F2. double recombinant offspring will be the rarest class

Which of the following statements are true regarding the F2 offspring of a mapping cross for three genes on the same chromosome? A Recombinant allelic combinations will occur less frequently when genes are further apart. A assuming all three genes are genetically linked, the most common classes of F2 offspring will be those containing parental allelic combinations the recombination rate calculated between any pair of genes will never exceed 5096 F2 offspring will tend to inherit all dominant or all recessive alleles from the triheterozygous parent the alleles of each gene will assort independently making parental and recombinant allelic combinations equally likely among the F2. double recombinant offspring will be the rarest class

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Description: Which of the following statements are true regarding the F2 offspring of a mapping cross for three genes on the same chromosome?Recombinant allelic combinations will occur less frequently when genes are further apart.assuming all three genes are gen

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter11: The Basic Principles Of Heredity

Section: Chapter Questions

Problem 11TYU: Individuals of genotype AaBb were mated to individuals of genotype aabb. One thousand offspring were...

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Individuals of genotype AaBb were mated to individuals of genotype aabb. One thousand offspring were counted, with the following results: 474 Aabb, 480 aaBb, 20 AaBb, and 26 aabb. What type of cross is it? Are these loci linked? What are the two parental classes and the two recombinant classes of offspring? What is the percentage of recombination between these two loci? How many map units apart are they?
In a cross between a black and a white cat, all members of the Fi generation are black. The F2 generation is made up of approximately 3/4 black and 1/4 white cat. (i) Diagram this cross, showing the genotypes and phenotypes of the parents, F, and F2 generations. What is the probability that the first two offspring will be homozygous and the third is white if an Ficat is test crossed?
In dogs, dark coat color is dominant over albino, andshort hair is dominant over long hair. Assume that theseeffects are caused by two independently assorting genes.Seven crosses were done as shown below, in which D andA stand for the dark and albino phenotypes, respectively,and S and L stand for the short-hair and long-hairphenotypes.Number of progenyParental phenotypes D, S D, L A, S A, La. D, S × D, S 88 31 29 12b. D, S × D, L 19 18 0 0c. D, S × A, S 21 0 20 0d. A, S × A, S 0 0 29 9e. D, L × D, L 0 31 0 11f. D, S × D, S 45 16 0 0g. D, S × D, L 31 30 10 10Write the genotypes of the parents in each cross. Use thesymbols C and c for the dark and albino coat-color allelesand the symbols H and h for the short-hair and long-hairalleles, respectively. Assume parents are homozygousunless there is evidence otherwise.
In corn plants, two pairs of genes control color in the ears of corn. The following genotypes result in various colors: W-C- [red]; wwC- [yellow]; W-cc [white]; wwcc [white]. What is the phenotypic ratio of the dihybrid cross between corn plants heterozygous for both genes? (Dashes mean the allele could be W or w, i.e., WWCC/WwCC/WWCc/WwCc geneotype gives red color)
In onion, male sterility is produced when the nuclear genotype is aa and the mitochondrial gene S (sterile) are present. Any other combination of nuclear genotype and mitochondrial gene (including gene F for fertile) will result in a male fertile plant. Give the genotypic ratio and the phenotypic ratio or the percentage of male sterile and male fertile offspring that will be produced in the following crosses. 1. Aa + S male x aa + F female 2. Reciprocal cross of number 1. (Note that when we do reciprocal cross, we interchange/swap the genotypes of the parents (if there is a nuclear gene involved, you interchange the nuclear genotype as well). 3. Aa + S female x Aa + F male 4. Reciprocal cross of number 3.
An individual heterozygous for d e f (D/d E/e F/f) was crossed to a homozygous recessive individual (d/d e/e f/f). The following offspring were recovered.d e + 39+ e f 372d + f 7+ + f 47+ e + 5d + + 412What is the correct order of these genes? EDF DFE DEF
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Which of the Pedigree Diagrams above is most likely to show a family with Achondroplasia? A KEY Homozygous Homozygous Heterozygous Heterozygous Wild Type Male Female Male Female Male с. Note: Completely red symbol denotes an individual exhibiting the phenotype of interest 11 IV V 1/4 1/2 1/2 ₂₂( 1/2 1/2 5 1/4 Wild Type Female 1/2 B Affected Known carrier Affected female Normal female Affected male Normal male D
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