A grey (G) male rabbit was mated with an albino (g) female rabbit. The F1 generation was grey. Show the phenotypic ratio of their offspring if an F1 male was mated with an albino female.

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Asked on April 14, 2026Biology

This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.

Accepted Answer · 2026-04-14T18:08:49.240Z

You're on a roll — here are the solutions for the genetics questions. 2.2 A grey (G) male rabbit was mated with an albino (g) female rabbit. The entire F1 generation was grey. Use a genetic cross to show the phenotypic ratio of their offspring if one of the males of the F1 generation was mated with an albino female. Step 1: Determine parental genotypes for the first cross. Since all F1 offspring are grey, grey (G) must be dominant over albino (g). The grey male must be homozygous dominant (GG) and the albino female homozygous recessive (gg). P: GG × gg Step 2: First cross (P to F1). Gametes from GG: G Gametes from gg: g F1: Gg All F1 offspring are heterozygous grey. Step 3: Second cross (F1 male with albino female). An F1 male is Gg. An albino female is gg. Gg × gg Step 4: Perform the Punnett square for the second cross. Gametes from Gg: G, g Gametes from gg: g, g |c|c|c| Gametes & G & g \\ g & Gg & gg \\ g & Gg & gg \\ Step 5: Determine the genotypic and phenotypic ratios. Genotypes: 50\% Gg, 50\% gg Phenotypes: 50\% Grey, 50\% Albino Phenotypic ratio: 1 Grey : 1 Albino 2.2.1 Name the type of Dominance shown. Answer: Complete Dominance 2.6 You have two rose plants, both with pink flowers. You cross them and find that, while most of the offspring are pink, some are red and some are white. Use a genetic cross to show how breeding two pink flowering plants can result in pink, red and white flowering plants. Use the letter R for the red allele and W for the white allele. Step 1: Identify the type of dominance. Since pink flowers result from a cross that also produces red and white flowers, this indicates incomplete dominance where pink is the heterozygous phenotype. Red phenotype: RR White phenotype: WW Pink phenotype: RW Step 2: Set up the cross. Parents are two pink flowering plants. P: RW × RW Step 3: Perform the Punnett square. Gametes from first RW: R, W Gametes from second RW: R, W |c|c|c| Gametes & R & W \\ R & RR & RW \\ W & RW & WW \\ Step 4: Determine the genotypic and phenotypic ratios. Genotypes: 25\% RR, 50\% RW, 25\% WW Phenotypes: 25\% Red, 50\% Pink, 25\% White Phenotypic ratio: 1 Red : 2 Pink : 1 White 3. A blue fly (BB) is crossed with a yellow fly (YY). All of the offspring produced are green (BY). 3.1 Use a genetic cross to show the phenotypic ratio and genotypic ratio off F1 generation. Step 1: Set up the cross. Parents: Blue fly (BB) × Yellow fly (YY) P: BB × YY Step 2: Perform the Punnett square. Gametes from BB: B Gametes from YY: Y |c|c|c| Gametes & Y & Y \\ B & BY & BY \\ B & BY & BY \\ Step 3: Determine the genotypic and phenotypic ratios for F1. Genotypes (F1): All BY (100\%) Phenotypes (F1): All Green (100\%) Genotypic ratio: 1 BY Phenotypic ratio: 1 Green 3.2 Two green flies mate. Illustrate the F2 generation using a genetic cross. Step 1: Set up the cross. Parents: Green fly (BY) × Green fly (BY) P: BY × BY Step 2: Perform the Punnett square. Gametes from first BY: B, Y Gametes from second BY: B, Y |c|c|c| Gametes & B & Y \\ B & BB & BY \\ Y & BY & YY \\ Step 3: Determine the genotypic and phenotypic ratios for F2. Genotypes (F2): 25\% BB, 50\% BY, 25\% YY Genotypic ratio: 1 BB : 2 BY : 1 YY Phenotypes (F2): 25\% Blue, 50\% Green, 25\% Yellow Phenotypic ratio: 1 Blue : 2 Green : 1 Yellow 3.3 Name the type of dominance illustrated by this cross. Answer: Codominance 4. A male dog that has white fur (WW) is bred with a female dog that has black fur (BB). All the offspring produced have black and white fur. 4.1 Name the type of dominance shown. Answer: Codominance 4.2 Use a genetic cross to show the phenotypes and genotypes of the F1 generation. Step 1: Set up the cross. Parents: White fur male (WW) × Black fur female (BB) P: WW × BB Step 2: Perform the Punnett square. Gametes from WW: W Gametes from BB: B |c|c|c| Gametes & B & B \\ W & BW & BW \\ W & BW & BW \\ Step 3: Determine the genotypic and phenotypic ratios for F1. Genotypes (F1): All BW (100\%) Phenotypes (F1): All Black and white fur (100\%) Genotypic ratio: 1 BW Phenotypic ratio: 1 Black and white fur What's next?

Accepted Answer · 2026-04-14T18:08:49.240Z

You're on a roll — here are the solutions for the genetics questions. 2.2 A grey (G) male rabbit was mated with an albino (g) female rabbit. The entire F1 generation was grey. Use a genetic cross to show the phenotypic ratio of their offspring if one of the males of the F1 generation was mated with an albino female. Step 1: Determine parental genotypes for the first cross. Since all F1 offspring are grey, grey (G) must be dominant over albino (g). The grey male must be homozygous dominant (GG) and the albino female homozygous recessive (gg). P: GG × gg Step 2: First cross (P to F1). Gametes from GG: G Gametes from gg: g F1: Gg All F1 offspring are heterozygous grey. Step 3: Second cross (F1 male with albino female). An F1 male is Gg. An albino female is gg. Gg × gg Step 4: Perform the Punnett square for the second cross. Gametes from Gg: G, g Gametes from gg: g, g |c|c|c| Gametes & G & g \\ g & Gg & gg \\ g & Gg & gg \\ Step 5: Determine the genotypic and phenotypic ratios. Genotypes: 50\% Gg, 50\% gg Phenotypes: 50\% Grey, 50\% Albino Phenotypic ratio: 1 Grey : 1 Albino 2.2.1 Name the type of Dominance shown. Answer: Complete Dominance 2.6 You have two rose plants, both with pink flowers. You cross them and find that, while most of the offspring are pink, some are red and some are white. Use a genetic cross to show how breeding two pink flowering plants can result in pink, red and white flowering plants. Use the letter R for the red allele and W for the white allele. Step 1: Identify the type of dominance. Since pink flowers result from a cross that also produces red and white flowers, this indicates incomplete dominance where pink is the heterozygous phenotype. Red phenotype: RR White phenotype: WW Pink phenotype: RW Step 2: Set up the cross. Parents are two pink flowering plants. P: RW × RW Step 3: Perform the Punnett square. Gametes from first RW: R, W Gametes from second RW: R, W |c|c|c| Gametes & R & W \\ R & RR & RW \\ W & RW & WW \\ Step 4: Determine the genotypic and phenotypic ratios. Genotypes: 25\% RR, 50\% RW, 25\% WW Phenotypes: 25\% Red, 50\% Pink, 25\% White Phenotypic ratio: 1 Red : 2 Pink : 1 White 3. A blue fly (BB) is crossed with a yellow fly (YY). All of the offspring produced are green (BY). 3.1 Use a genetic cross to show the phenotypic ratio and genotypic ratio off F1 generation. Step 1: Set up the cross. Parents: Blue fly (BB) × Yellow fly (YY) P: BB × YY Step 2: Perform the Punnett square. Gametes from BB: B Gametes from YY: Y |c|c|c| Gametes & Y & Y \\ B & BY & BY \\ B & BY & BY \\ Step 3: Determine the genotypic and phenotypic ratios for F1. Genotypes (F1): All BY (100\%) Phenotypes (F1): All Green (100\%) Genotypic ratio: 1 BY Phenotypic ratio: 1 Green 3.2 Two green flies mate. Illustrate the F2 generation using a genetic cross. Step 1: Set up the cross. Parents: Green fly (BY) × Green fly (BY) P: BY × BY Step 2: Perform the Punnett square. Gametes from first BY: B, Y Gametes from second BY: B, Y |c|c|c| Gametes & B & Y \\ B & BB & BY \\ Y & BY & YY \\ Step 3: Determine the genotypic and phenotypic ratios for F2. Genotypes (F2): 25\% BB, 50\% BY, 25\% YY Genotypic ratio: 1 BB : 2 BY : 1 YY Phenotypes (F2): 25\% Blue, 50\% Green, 25\% Yellow Phenotypic ratio: 1 Blue : 2 Green : 1 Yellow 3.3 Name the type of dominance illustrated by this cross. Answer: Codominance 4. A male dog that has white fur (WW) is bred with a female dog that has black fur (BB). All the offspring produced have black and white fur. 4.1 Name the type of dominance shown. Answer: Codominance 4.2 Use a genetic cross to show the phenotypes and genotypes of the F1 generation. Step 1: Set up the cross. Parents: White fur male (WW) × Black fur female (BB) P: WW × BB Step 2: Perform the Punnett square. Gametes from WW: W Gametes from BB: B |c|c|c| Gametes & B & B \\ W & BW & BW \\ W & BW & BW \\ Step 3: Determine the genotypic and phenotypic ratios for F1. Genotypes (F1): All BW (100\%) Phenotypes (F1): All Black and white fur (100\%) Genotypic ratio: 1 BW Phenotypic ratio: 1 Black and white fur What's next?

A grey (G) male rabbit was mated with an albino (g) female rabbit. The F1 generation was grey. Show the phenotypic ratio of their offspring if an F1 male was mated with an albino female.

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A grey (G) male rabbit was mated with an albino (g) female rabbit. The F1 generation was grey. Show the phenotypic ratio of their offspring if an F1 male was mated with an albino female.

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