What would the probabilities be for the following outcomes?  3 offspring in the following order: normal, with disease, normal

Mendelian Genetics Worksheet Name Hour Fill in the Punnett squares for each cross given to determine the phenotype and genotype ratio's of the offspring Crosses with one homozygous dominant parent: AA x AA A AA x Aa A АА х а A AA x aa A A A A A a A a a Offspring Genotypes: AA AA AA Aa Offspring Phenotypes: Aa Aa aa aa aa Dominant Dominant Recessive Dominant Recessive Recessive_ _ Crosses with one heterozygous parent: Aа х АА Аа х Аа Аа х аа A a A a A a A a A a a Offspring Genotypes: AA_ Aa_ aa AA Aa aa AA_ Aa aa Offspring Phenotypes: Dominant Recessive Dominant Dominant Recessive Recessive _ Crosses with one homozygous recessive parent: aa x AA aa x Aa аа х аа a a a a a a A A a A a a Offspring Genotypes: AA Aa_aa AALAA_aa AA Aa_ aa_ Offspring Phenotypes: Dominant Dominant Dominant Recessive_ Recessive_ Recessive _

An individual with the genotype AA is crossed with an individual with the genotype Aa, producing 120 offspring. The number of offspring with genotype AA will be close to * O 120 90 O 60 30

In swine, pointed ears are dominant to floppy ears & white hair color is dominant to black hair color.    -The sow (mom) is heterozygous for both traits    -The boar (dad) has floppy ears & black hair What are the possible genotypes & phenotypes of the progeny? If both parents were heterozygous for both traits, what would be the expected phenotypes of their offspring and in what proportion?

A fish with red eyes and yellow scales is crossed to a pure-breeding fish with brown eyes and orange scales, resulting in offspring having red eyes and yellow scales (50%) or brown eyes and yellow scales (50%). You cross the red eye/yellow scale offspring together, and the resulting offspring are as follows. How are these traits likely inherited Number of offspring 676-yellow/red 224-red/orange 224-brown/yellow 76-brown/orange

For n = number of genes segregating, how many different phenotypes and genotypes are observed in the F2 generation? Assume complete dominance at each gene. 2" phenotypes and 3" genotypes 3" phenotypes and 2" genotypes n2 phenotypes and n° genotypes n3 phenotypes and n2 genotypes

Round (R) and yellow (Y) are dominant over wrinkled (r) and green (y) peas. Given the case that parent plant 1 is homozygous for the round pea trait and heterozygous for the yellow trait, and parent plant 2 is heterozygous for the round trait and is green, answer the following questions 1. The genotype for parent plant 1 is and the genotype for parent plant 2 is 2. The percentage of offspring with green peas is 3. The percentage of offspring with wrinkled peas is % 4. The offspring would most likely show the phenotypes of shaped peas and coloured peas.

Table 1: DOWN SYNDROME BY SINGLE-YEAR INTERVAL Down syndrome live births, and estimated total live births, for British Columbia residents, 1961-1970 Matemal age in years Sum total of live births Sum total of cases S17 18 19 13,555 13,675 18,752 16 15 16 20 21 22,005 23,896 24,667 24,807 23,986 22 16 12 17 22 22 23 24 25 26 27 28 29 22,860 21,450 19,202 17,450 15,685 15 14 27 14 9 30 31 32 33 34 13,954 11,987 10,983 9,825 8,483 12 12 18 13 11 35 36 37 38 39 7,448 6,628 5,780 4,834 3,961 23 13 17 15 30 2,952 2,276 1,589 1,018 596 40 31 41 33 20 16 22 42 43 44 45 246 327 249 11 7 Total 354,880 519 *5 mothers of age 46 years, 2 mothers of age 47 years with Down syndrome live births.