Lab Report 11 - Genetics Concepts with Dihybrid

Lab Report 11 - Genetics Concepts with Dihybrid - 1...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
1   INET Lab Report 11 Genetics Concepts Report Template Student:    Email :   Date:    I. Meiosis and Inheritance EXERCISE 11.1  – Gamete Formation in Monohybrid Crosses For each of the following parental genotypes, show the possible genotypes of their gametes. Parental Genotype (diploid): AA aa Aa meiosis Gamete Genotype (haploid): A a a a A a During fertilization, two gamete nuclei fuse and the diploid condition is restored.  List the diploid genotypes produced by  fusion of the following gametes: Gamete Genotype: a a A A A a fertilization Offspring Genotype: aa AA Aa © Access Learning Systems
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Mendels Experiments A. Monohybrid Cross Showing Complete Dominance A pea plant has the genotype PP for flower color.  The gametes produced by this plant contain what allele(s)? P A pea plant produces all white flowers.  What is its genotype? Pp Use the gray areas of the Punnett square below to show your answers for the following two questions. If a purple flowered plant (PP) is crossed with a white flowered plant ( pp ), the resulting seeds will grow into plants that  have what phenotype?  Pp What will be the genotype of the flowers produced from the above cross? p p P Pp Pp P Pp Pp Offspring Genotype: Pp Offspring Phenotype: Colored flower Would you expect any white flowered pea plants to be produced from the above cross? No
Background image of page 2
3 EXERCISE 11.2  – Predicts the possible offspring of a cross between two heterozygous purple flowered plants. Step 1   no Phenotype Genotype Phenotype Genotype Parent: AA Aa AA Aa meiosis X Gametes: AA,  AA Aa,  Aa AA,  AA Aa,  Aa Use the gray areas of the Punnett square below to show your answers for the following three questions. Step 2   Step 3   Step 4 (HINT: Always write the capital letter (dominant allele) before the lower case letter (recessive allele).) Possible Allele Pairings with Heterozygous Purple Pea Plants P p P PP Pp p Pp pp Offspring Probabilities: Percentage Ratio Phenotype: Pp 50 1:1 pp 25 1:4 Genotype: PP 25 1:4 Pp 50 1:2 pp 25 1:4
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4 EXERCISE 11.3  – Predict the possible offspring of a monohybrid cross in corn Cross 1 Phenotype Genotype Phenotype Genotype Parent: Purple  Kernel PP Yellow  Kernel pp meiosis X Gametes: P P p p Possible Allele Pairings Between Homozygous Purple Corn and Homozygous Yellow Corn P p P Pp Pp p Pp Pp F 1  Offspring Probabilities: Percentage Ratio Phenotype: PP 0 0:4 Genotype: Pp 100 4:1
Background image of page 4
5 Cross 2 Phenotype Genotype Phenotype Genotype Parent: Purple  Kernel P p Purple  Kernel P p meiosis X Gametes: F 1  Cross P p P PP Pp p Pp pp F 2  Offspring Probabilities: Percentage Ratio Phenotype: Pp 50 1:1 Pp 50 1:1 Genotype: PP 25 1:4 Pp 50 1:2 pp 25 1:4 What percentage of a cross between a homozygous dominant parent and a homozygous recessive parent will have a 
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/07/2011 for the course BIOL 1408 taught by Professor Mason during the Fall '08 term at Dallas Colleges.

Page1 / 20

Lab Report 11 - Genetics Concepts with Dihybrid - 1...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online