You are studying two SNPs each with two alleles (A and C; G and T). You cross an AA GG individual...
You are studying two SNPs each with two alleles (A and C; G and T). You cross an AA GG individual with an CC TT individual to generate a doubly heterozygous pool of offspring (the F1). You cross these doubly heterozygous individuals with each other. Imagine it is possible to sample the gametes of these double heterozygotes. If the SNPs are fully unlinked what haplotypes should you observe in the gametes, and in what frequency?
1. What is D in the F2 offspring that result from crosses of the F1 populations?
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You are studying two SNPs each with two alleles (A and C; G and T). You cross an AA GG individual...
You conduct a QTL experiment to find the loci controlling fruit size and sugar content starting...
You conduct a QTL experiment to find the loci controlling fruit
size and sugar content starting from two parental varieties, “Sam’s
Giant (SG)” and “Sweet Baby Red (SBR)”. Your cross “Sam’s Giant”
and “Sweet Baby Red” and generate F1’s and then interbreed F1’s to
generate a series of F2 individuals and measure size and sugar
content in all of them. You determine the genotype at many
individual SNP markers, 5 of which (each on a different chromosome)
are shown below....
You are studying two different unrelated organisms. In the first, you cross a true-breeding colorless individual...
You are studying two different unrelated organisms. In the first, you cross a true-breeding colorless individual with a true-breeding red individual. All F1 offspring are red. When you cross two F1 individuals, you get 70 reds and 58 colorless. The reciprocal cross gives similar results. In the second organism, you cross a true-breeding colorless with a true-breeding blue. All F1 offspring are colorless. When you cross the F1 offspring you get 23 blue individuals and 105 colorless individuals. Again the...
1) The alternate forms of a gene for the same trait are known as -A)alleles. B)phenotypes....
1) The alternate forms of a gene for the same trait are known as -A)alleles. B)phenotypes. C)genotypes. D)codominants. E)incomplete dominants. 2) Mendel carried out most of his research with A)livestock -B)pea plants. C)guinea pigs. D)fruit flies. E)bacteria. 3) Which of the following is true according to Mendel's law of segregation? A)Each individual contains two alleles for each trait. B)Fertilization restores the presence of two alleles. C)Alleles separate from each other during gamete formation. D)Each gamete contains one copy of each...
3) Dihybrid cross: The dark-bodied and rudimentary winged genes are on two different autosomal chromosomes. We...
3) Dihybrid cross: The dark-bodied and rudimentary winged genes are on two different autosomal chromosomes. We will use this cross to determine the ratios of phenotypes in the F2 generation when there are two genes involved. 3.1) Use the following symbols to write out the cross: Male: 3 Female: 9 Dark body color (ebony) = e Wild-type body color: E or E+ Rudimentary wings- (vestigial wings= v) Wild-type wings: V or V+ 3.2) What would the cross look like if...
4. You cross individuals with the following Genotypes, AaBbDdEeFFGg & AaBbDDEeFfGg. Predict the proportion of offspring...
4. You cross individuals with the following Genotypes, AaBbDdEeFFGg & AaBbDDEeFfGg. Predict the proportion of offspring that would show the following Phenotype or Genotype? A) all Dominant Phenotypes, B) the Genotype: AabbDdEeFfgg, C) the Genotype: AABbDdEeFfgg, D) the Genotype: aaBbddEeffGg, & E) all Recessive Phenotypes. 5. You cross individuals with the following Genotypes, AaBbDdEeFFgg x AabbDDEeFfGg. If you produce 1000 offspring in this cross, predict the number of offspring that would have the following Phenotype or Genotype? A) all Dominant...
Biol 210: Genetics. Assign. #1 #5) You are studying a gene for body colour in house...
Biol 210: Genetics. Assign. #1 #5) You are studying a gene for body colour in house flies. The wild-type allele (B) has a dark blue phenotype. In population screens you find 6 recessive mutants B' through B$ and establish homozygous strains, all of which have a pale blue phenotype. You cross each mutant strain to itself and to all the other mutant and wild type lines and observe the following results (+ = wild- type phenotype in F1, -= mutant...
4. You are studying three genes in corn and performed a three-point cross. The three genes...
4. You are studying three genes in corn and performed a three-point cross. The three genes are green (V) vs Viniscent (V) seedlings, blue (Pr) vs red kernels (pr) and white (B ) or brown (bm) leaf midrib color. The table below list the offspring resulting from a testcross with a female F1 heterozygote. Type of gamete (NR, SCO, DCO Phenotype Progeny Gamete from F1 heterozygote Virescent seedling red 101 kernel Red kernel 175 Red kernel, brown midrib 259 Virescent...
Match the following terms with the appropriate description below: a. alleles b. autosomes c. dominant allele...
Match the following terms with the appropriate description
below:
a. alleles b. autosomes c. dominant allele d. genotype e.
heterozygous f. homozygote g. phenotype h. recessive allele i. sex
chromosomes
1. ________________ genetic make-up
2. ________________ how genetic make-up is expressed
3. ________________ chromosomes that dictate most body
characteristics
4. ________________ alternative forms of the same gene
5. ___________an individual bearing two alleles that are the same
for a particular trait 6. ________________ an allele that is
expressed, whether in...
Help Center 07 Question 38 What phenotypic ratio of offspring would result from a cross between...
Help Center 07 Question 38 What phenotypic ratio of offspring would result from a cross between a white-eyed male fruit fly, and a female that is heterozygous for red eye color? (See Chapter 8.3 Figure your e Text) 2 white-eyed females 2 red-eyed males V none of these 2 red-eyed female 1 white-eyed female: 1 red-eyed male: 2 white-eyed male 1 red-eyed female 1 white-eyed female 1 red-eyed male: 1 white-eyed male 2 red-eyed females: 2 white-eyed males Question 39...
On the island of Notion, in the Factotum Archipelago, there lives a population of pencil bears....
On the island of Notion, in the Factotum Archipelago, there lives a population of pencil bears. A portion of these bears have silky fur, and as a result, are much better surfers. The texture of the fur is determined by a single autosomal locus with two alleles: S (trait allele) and s (wild type allele). In a recent study, researched collected the values in the following table: Table 1. Counts of Pencil Bear fur style by genotype Phenotype Genotype Silky...
You conduct a QTL experiment to find the loci controlling fruit
size and sugar content starting from two parental varieties, “Sam’s
Giant (SG)” and “Sweet Baby Red (SBR)”. Your cross “Sam’s Giant”
and “Sweet Baby Red” and generate F1’s and then interbreed F1’s to
generate a series of F2 individuals and measure size and sugar
content in all of them. You determine the genotype at many
individual SNP markers, 5 of which (each on a different chromosome)
are shown below....
1) The alternate forms of a gene for the same trait are known as -A)alleles. B)phenotypes. C)genotypes. D)codominants. E)incomplete dominants. 2) Mendel carried out most of his research with A)livestock -B)pea plants. C)guinea pigs. D)fruit flies. E)bacteria. 3) Which of the following is true according to Mendel's law of segregation? A)Each individual contains two alleles for each trait. B)Fertilization restores the presence of two alleles. C)Alleles separate from each other during gamete formation. D)Each gamete contains one copy of each...
3) Dihybrid cross: The dark-bodied and rudimentary winged genes are on two different autosomal chromosomes. We will use this cross to determine the ratios of phenotypes in the F2 generation when there are two genes involved. 3.1) Use the following symbols to write out the cross: Male: 3 Female: 9 Dark body color (ebony) = e Wild-type body color: E or E+ Rudimentary wings- (vestigial wings= v) Wild-type wings: V or V+ 3.2) What would the cross look like if...
Biol 210: Genetics. Assign. #1 #5) You are studying a gene for body colour in house flies. The wild-type allele (B) has a dark blue phenotype. In population screens you find 6 recessive mutants B' through B$ and establish homozygous strains, all of which have a pale blue phenotype. You cross each mutant strain to itself and to all the other mutant and wild type lines and observe the following results (+ = wild- type phenotype in F1, -= mutant...
4. You are studying three genes in corn and performed a three-point cross. The three genes are green (V) vs Viniscent (V) seedlings, blue (Pr) vs red kernels (pr) and white (B ) or brown (bm) leaf midrib color. The table below list the offspring resulting from a testcross with a female F1 heterozygote. Type of gamete (NR, SCO, DCO Phenotype Progeny Gamete from F1 heterozygote Virescent seedling red 101 kernel Red kernel 175 Red kernel, brown midrib 259 Virescent...
Match the following terms with the appropriate description
below:
a. alleles b. autosomes c. dominant allele d. genotype e.
heterozygous f. homozygote g. phenotype h. recessive allele i. sex
chromosomes
1. ________________ genetic make-up
2. ________________ how genetic make-up is expressed
3. ________________ chromosomes that dictate most body
characteristics
4. ________________ alternative forms of the same gene
5. ___________an individual bearing two alleles that are the same
for a particular trait 6. ________________ an allele that is
expressed, whether in...
Help Center 07 Question 38 What phenotypic ratio of offspring would result from a cross between a white-eyed male fruit fly, and a female that is heterozygous for red eye color? (See Chapter 8.3 Figure your e Text) 2 white-eyed females 2 red-eyed males V none of these 2 red-eyed female 1 white-eyed female: 1 red-eyed male: 2 white-eyed male 1 red-eyed female 1 white-eyed female 1 red-eyed male: 1 white-eyed male 2 red-eyed females: 2 white-eyed males Question 39...
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