For a tetrahybrid cross between individuals that are heterozygous for all four genes, and in which...
For a tetrahybrid cross between individuals that are heterozygous for all four genes, and in which all four genes are sorting independently and in a dominant and recessive pattern, what proportion of the offspring will be expected to be homozygous recessive for all four alleles ? What proportion of the offspring will be expected to have the dominant phenotype at all four loci?
Homework Answers
In tetrahybrid cross the proportion of homozygous recessive will always be 1. I.e 1 out of 256 progeny will have all four Gene's in recessive state.
The proportion of offspring with all dominant phenotype at all for loci will be 81 out of 256.
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For a tetrahybrid cross between individuals that are
heterozygous for all four genes, and in which...
Peas heterozygous for three independently assorting genes were intercrossed. (example cross: Aa Bb Ccx Aa Bb...
Peas heterozygous for three independently assorting genes were intercrossed. (example cross: Aa Bb Ccx Aa Bb Cc) What proportion of the offspring will be homozygous for all three recessive alleles? What proportion of the offspring will be homozygous for one gene and heterozygous for the other two?
Please answer these questions Dihybrid Test Cross PpTt x pptt Heterozygous for both genes makes 4...
Please answer these questions
Dihybrid Test Cross PpTt x pptt Heterozygous for both genes makes 4 types of gametes: PPTT x pptt Homozygous dominant for both genes makes 1 type of gamete: Homozygous recessive for Homozygous recessive for both genes makes 1 type of gamete: both genes makes 1 type of gamete: All of the offspring will have What type of offspring will the genotype the phenotype result?
Which of the following is true regarding dihybrid crosses? A. Each parent involved in the cross...
Which of the following is true regarding dihybrid crosses? A. Each parent involved in the cross is heterozygous for at least one of the two genes being assessed. B. Two gene loci are assessed and the parents can be any genotype at these two loci. C. There are 9 different fertilization possibilities. D. The ratio 9:3:3:1 means that of the possible outcomes in offspring; 9/16 will express the dominant phenotype for both loci, 3/16 will express the dominant phenotype for...
Genes W, Y, Z assort independently and are dominant over their corresponding alleles w, y, z....
Genes W, Y, Z assort independently and are dominant over their corresponding alleles w, y, z. You conduct an experiment where you set up a cross between two individuals heterozygous for each trait [Ww Yy Zz x Ww Yy Zz]. (a) What is the frequency of offspring resulting from the cross who are dominant homozygous--that is, whose genotype is [WW YY ZZ]?(b) What is the frequency of offspring whose phenotype is dominant for all three traits?
17. In a simple monohybrid cross the individuals of 100% known genotype in the F2 offspring,...
17. In a simple monohybrid cross the individuals of 100% known genotype in the F2 offspring, are which of these? a) the heterozygous individuals b) the homozygous dominant individuals c) the homozygous recessive individuals d) you could not determine the geneotype of any offspring without performing additional tests. 18. If an individual contains two alleles for a particular gene and the two alleles are different from each other, the individual is said to be: a) homozygous dominant b) homozygous recessive...
In a cross between individuals with the following genotypes for 5 hypothetical genes: AaBbCCDdee x aaBBccDdEe;...
In a cross between individuals with the following genotypes for 5 hypothetical genes: AaBbCCDdee x aaBBccDdEe; what is the probability that that one of the progeny would have a dominant phenotype (assume classical dominant/recessive pattern of inheritance for all 5 genes.? 1/16 3/16 1/32 3/32
Which of the statements about incomplete dominance are true? 1) Heterozygous individuals have the same phenotype...
Which of the statements about incomplete dominance are true? 1) Heterozygous individuals have the same phenotype as homozygous dominant individuals. 2) Heterozygous individuals have a phenotype intermediate to the homozygous dominant and homozygous recessive phenotypes. 3) Heterozygous individuals express both the homozygous dominant and homozygous recessive phenotypes. 4) If homozygous dominant mice have black fur, and homozygous recessive mice have white fur, then heterozygous mice have gray fur.
7) You cross individuals with genotypes as given below. The seven genes have a typical Mendelian...
7) You cross individuals with genotypes as given below. The seven genes have a typical Mendelian pattern of inheritance, and each gene has two alleles that have a complete dominance relationship: AaBbCcddEeFFgg X aabbCcDdEeFfGg A) What is the probability that one offspring from this mating will have the genotype AaBbccDdeeFFGg (4 pts.)? B) What is the probability that one offspring from this mating will express the dominant phenotype for all seven genes (4 pts.)?
Show below is the arrangement of three genes in a heterozygous individual. All three genes have...
Show below is the arrangement of three genes in a heterozygous individual. All three genes have a classic dominant/recessive pattern of inheritance. w+ y+ c w y c+ What phenotypes would you expect in the parental, single crossovers and double crossovers after a cross with a homozygous recessive individual. If we know w is closer to y than it is to gene c, put the four categories above in order from highest frequency to lowest frequency.
In a trihybrid cross between individuals who are heterozygous for all three traits, the expected proportion...
In a trihybrid cross between individuals who are heterozygous for all three traits, the expected proportion of offspring showing dominance for one trait and recessive for the other two is 1/16 1/64 27/64 9/16 9/64
Please answer these questions
Dihybrid Test Cross PpTt x pptt Heterozygous for both genes makes 4 types of gametes: PPTT x pptt Homozygous dominant for both genes makes 1 type of gamete: Homozygous recessive for Homozygous recessive for both genes makes 1 type of gamete: both genes makes 1 type of gamete: All of the offspring will have What type of offspring will the genotype the phenotype result?
7) You cross individuals with genotypes as given below. The seven genes have a typical Mendelian pattern of inheritance, and each gene has two alleles that have a complete dominance relationship: AaBbCcddEeFFgg X aabbCcDdEeFfGg A) What is the probability that one offspring from this mating will have the genotype AaBbccDdeeFFGg (4 pts.)? B) What is the probability that one offspring from this mating will express the dominant phenotype for all seven genes (4 pts.)?
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