Why is the pea wrinkled-seed allele a recessive allele? The trait associated with the allele is not exhibited in heterozygotes. … The result of the cross between round and wrinkled pure breed cell lines was all round seeds in the F1 offspring, not partially round and wrinkled as blending theory would predict.
Why is pea wrinkled-seed allele a recessive allele?
Why is the pea wrinkled-seed allele a recessive allele? The alleles found in haploid organisms cannot be dominant or recessive. … Mendel’s rules do not correctly predict patterns of inheritance for tightly linked genes or the inheritance of alleles that show incomplete dominance.
Are wrinkled peas dominant or recessive?
Because the allele that produces wrinkled peas is recessive, the offspring of this cross will all have wrinkled peas.
Are wrinkled seeds a recessive trait?
Wrinkled peas need to have genotype rr, since the wrinkled trait (r) is recessive.
What are the 3 principles of Mendelian genetics?
Mendel’s studies yielded three “laws” of inheritance: the law of dominance, the law of segregation, and the law of independent assortment. Each of these can be understood through examining the process of meiosis.
What is an example of heterozygous?
Your genes are made of DNA. … If the two versions are different, you have a heterozygous genotype for that gene. For example, being heterozygous for hair color could mean you have one allele for red hair and one allele for brown hair.
What is the meaning of wrinkled seeds?
The high sugar content of wrinkled peas means that water moves in by osmosis, causing the pea to expand inside its seed coat. Once it is mature, it loses the water as it dries and shrivels. But having been stretched, the seed coat then wrinkles as the pea inside shrinks.
What differences do you notice on an individual level between the smooth and wrinkled peas?
What differences do you notice on an individual level between the smooth and wrinkled peas? Wrinkled peas were larger when wet and had more color variation than the smooth peas.
Are yellow peas dominant or recessive?
Turns out they have yellow peas because the yellow version, Y, is dominant over the recessive green version, y. Y always wins out over y: When a pea plant makes seeds, only one of its two copies of the color gene goes into the seed. So if you have two green pea plants, each can only pass a green version.
Which is an example of an inherited trait?
Inherited traits include things such as hair color, eye color, muscle structure, bone structure, and even features like the shape of a nose. Inheritable traits are traits that get passed down from generation to the next generation. This might include things like passing red hair down in a family.