Selected Traits in Cats Trait Dominant Allele Recessive Allele Short hair (H) Long hair (h) Coat Length Tabby (T) Stripeless (t) Tabby Stripes Normal (N) (no colorpoint) Colorpoint (n) Colorpoint (markings on nose, ears, paws, and tail) Show the results of the following crosses using Punnett squares and the information in the accompanying figure above. 1. Heterozygous short-hair X Heterozygous short-hair Genotypic ratio: Phenotypic ratio: 2. Heterozygous tabby X Stripeless Genotypic ratio: Phenotypic ratio: 3. Colorpoint X Homozygous normal Genotypic ratio: Phenotypic ratio:

7- In peas, a tall, yellow- seeded plant is crossed with a homozygous short, green- seeded plant and yields 203 tall, green-seeded plant, 199 short, green seeded plants, 207 tall, yellow-seeded plants, and 192 short, yellow-Seeded plants. The most likely genotype of the tall, yellow-seeded plant is.. [EXPLAIN by drawing the punnett square that reflects this phenomena then select the right answer/4 a) TtYy b) TTYY c) Ttyy d) ttYY

In silk moths red eyes (r) and white banded wing (w) are recessive to normal eyes (R) and 10m.u. apar normal wings (W). A moth homozygous for red eyes and white banded wings is crossed with an individual who is homozygous normal for both traits. The F, progeny are testcrossed with the following progeny produced: Normal eyes, normal wings Red eyes, normal wings 19 Normal eyes, white banded wings Red eyes, white banded wings 426 a. What phenotypic proportions would be expected if the genes for red eyes and white banded wings were located on different chromosomes? b. What is the genetic distance between these two genes? 418 16

It would be nice if you can give me some explanation please Number 6

Principles of Heredity 667 Activity 1 Working Out Crosses Involving Dominant and Recessive Genes For each of the following crosses, draw your own Punnett square and use the technique outlined above to determine the genotypes and phenotypes of the pea plant offspring 2. Genotypes of parents: Tt (3) × Tt (Q) % of each genotype: 1. Genotypes of parents: Tt (3) × tt (9) % of each phenotype: % tall, % dwarf % of each genotype: 3. Genotypes of parents: TT (3) X Tt (2) % of each phenotype: % tall, % dwarf % of each genotype: % of each phenotype: % tall, % dwarf Incomplete Dominance uhot alleles exnress themselves in the offspring. The crosses are