Homework Answers
The answer is option (b)
F1 generation is commonly called as first generation and need not be a homozygous generation always but F1 is the offspring of parental generation.
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Question 2 The F1 generation can best be described as... the first generation the offspring of...
When the P generation of true-breeds, are allowed to crossed, the probability that the F1 offspring...
When the P generation of true-breeds, are allowed to crossed, the probability that the F1 offspring will express a homozygous genotype (either recessive or dominant) is: 0% 25% 100% 50%
Mendel bred pea plants for multiple generations to ensure they were true-breeding. What is true-breeding? The...
Mendel bred pea plants for multiple generations to ensure they were true-breeding. What is true-breeding? The organism always produces offspring every time it breeds. The organism will only breed with itself. The organisms will only breed with others that have the same trait. The organisms always produce offspring with the same traits as the parent. Question 2 The F1 generation can best be described as... the first generation the offspring of the P generation the homozygous generation
2. You cross a homozygous wildtype female Drosophila (fruit fly) with a male that has a black body (bb). You mate two of the F1 (first generation) flies and examine the F2 (second generation) off...
2. You cross a homozygous wildtype female Drosophila (fruit fly) with a male that has a black body (bb). You mate two of the F1 (first generation) flies and examine the F2 (second generation) offspring. The phenotypes can be seen in the table below. a. Draw a pedigree to show the P, F1, and F2 generations. You only need to draw one fly with each phenotype for the F2 generation. seen in this cross. the expected values for a cross...
Explain Mendel’s first two crosses and the proportions of phenotypes in each generation of offspring. How...
Explain Mendel’s first two crosses and the proportions of phenotypes in each generation of offspring. How do Punnett Squares work? Explain the following terms: gene, allele, genotype, phenotype, homozygous, heterozygous, dominant, recessive. Explain the difference between homozygous dominant, homozygous recessive, and heterozygous genotypes. What is mutation? How do different types of point mutations have different outcomes? What types of chromosomal mutations can occur? How and when do mutations lead to evolutionary change?
If the genotype ratio of the offspring F1 generation are 1 RR : 2 Rr: 1...
If the genotype ratio of the offspring F1 generation are 1 RR : 2 Rr: 1 rr, the genotpes of the P generation are: RR x Rr Rr x rr RR x rr RR x RR Cell division by meiosis results in 2 haploid cells 4 diploid cells 1 daughter cell 4 haploid cells If an egg of a female rhino is 24 chromosomes, how many chromosomes would be found in a skin cell? 24 48 6 46 DNA polymerase...
4. Now, assume that a F1 male and a F1 female offspring produced by the cross...
4. Now, assume that a F1 male and a F1 female offspring produced by the cross in #3 above mate with each other. F1 offspring : XXGgBb and XYGgBb Note: You can ignore the X and Y chromosomes here in question 4. Why? The traits of interest (fire-breathing and laser-shooting) are autosomal, so the sex of the fly (XX=female or XY=male) will not impact the trait expressed. You only need to follow the inheritance of chromosomes 2 and 3 for...
In mice, black fur (B) is dominant over brown fur (b). Breeding a brown mouse and...
In mice, black fur (B) is dominant over brown fur (b). Breeding a brown mouse and a homozygous black mouse produces all black offspring. a. What is the genotype of the gametes produced by the brown-furred parent? ________________________________________________________ b. What is the genotype of the brown-furred parent? ________________________________________________________ c. What is the genotype of the black furred parent? ________________________________________________________ d. What is the genotype of the black-furred offspring? By convention, P stands for the parental generation. The offspring are called...
Part 2: Data Tables Table 1: Parent Genotypes: Monohybrid Crosses Generation Genotype of Individual #1 Genotype...
Part 2: Data Tables Table 1: Parent Genotypes: Monohybrid Crosses Generation Genotype of Individual #1 Genotype of Individual #2 P Yy SS P1 Sy Sy P2 yS yy P3 Sy Sy P4 Sy Sy Table 2: Generation Data Produced by Monohybrid Crosses Generation Possible Offspring Genotypes Possible Offspring Phenotypes Genotype Ratio Phenotype Ratio P YY Yy yy Yellow or Blue 1:2:1 3:1 P1 YY Yy yellow 1:1 1 P2 Yy yy Yellow or Blue 1:1 1:1 P3 Yy yy Yellow...
CC DD and cc dd individuals were crossed to each other, and the F1 generation was...
CC DD and cc dd individuals were crossed to each other, and the F1 generation was backcrossed to the cc dd parent. 903 Cc Dd, 897 cc dd, 98 Cc dd, and 102 cc Dd offspring resulted. 1. How far apart are the c and d loci? 2. What progeny and in what proportions would you expect to result from testcrossing the F1 generation from a CC dd x cc DD cross to cc dd?
5. In Mendel's experiments, the pod color gene and the seed shape gene were located on...
5. In Mendel's experiments, the pod color gene and the seed shape gene were located on different chromosomes (in other words, they were not linked. They assort independently). Green pods (G) are dominant over yellow pods (g) and tall stems (T) are dominant over dwarf stems (t). You are given two true breeding plants (homozygous at both genes). In the parental (P) generation, one parent has green pods and dwarf stems and the second parent has yellow pods and tall...
Mendel bred pea plants for multiple generations to ensure they were true-breeding. What is true-breeding? The organism always produces offspring every time it breeds. The organism will only breed with itself. The organisms will only breed with others that have the same trait. The organisms always produce offspring with the same traits as the parent. Question 2 The F1 generation can best be described as... the first generation the offspring of the P generation the homozygous generation
2. You cross a homozygous wildtype female Drosophila (fruit fly) with a male that has a black body (bb). You mate two of the F1 (first generation) flies and examine the F2 (second generation) offspring. The phenotypes can be seen in the table below. a. Draw a pedigree to show the P, F1, and F2 generations. You only need to draw one fly with each phenotype for the F2 generation. seen in this cross. the expected values for a cross...
4. Now, assume that a F1 male and a F1 female offspring produced by the cross in #3 above mate with each other. F1 offspring : XXGgBb and XYGgBb Note: You can ignore the X and Y chromosomes here in question 4. Why? The traits of interest (fire-breathing and laser-shooting) are autosomal, so the sex of the fly (XX=female or XY=male) will not impact the trait expressed. You only need to follow the inheritance of chromosomes 2 and 3 for...
5. In Mendel's experiments, the pod color gene and the seed shape gene were located on different chromosomes (in other words, they were not linked. They assort independently). Green pods (G) are dominant over yellow pods (g) and tall stems (T) are dominant over dwarf stems (t). You are given two true breeding plants (homozygous at both genes). In the parental (P) generation, one parent has green pods and dwarf stems and the second parent has yellow pods and tall...
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