Unit 6 Lesson 7: BioFlexBook Questions
(1) Given what you know about the science of biology, why would you expect that there would be variations to Mendel's First and Second Laws?
In Mendel’s First law he states that every person has a pair of alleles for any trait that each parent passes randomly. Mendel’s Second law states that alleles from different genes are passed independently. This variation makes sense because when you are researching a subject you learn more about it as time goes on and you can perfect your knowledge of that subject.
(2) Define Codominance. Provide an example of codominance, highlighting genotype and phenotype ratios of the following generations: P, F1, F2.
Codominance is when both alleles are equal or are expressed equally. If a lizard had two dominant colors for its skin it could be blue and yellow at the same time without it just becoming green skin.
(3) Define Incomplete Dominance. Provide an example of incomplete dominance, highlighting genotype and phenotype ratios of the following generations: P, F1, F2.
Incomplete dominance is when the dominant allele is not completely dominant.
(4) Outline one example of inheritance involving multiple alleles.
Human blood type is one example of inheritance that involves multiple alleles. The type A allele is codominant with the type B alleles, and type A and B alleles are both dominant to blood type O which is is why human blood type has a couple different possibilities.
(5) How do polygenic traits produce the appearance of blending inheritance?
Allels that be founded on chromosomes may hold different dominant and recessive genes, forming blending or will be independantly inherited equal.
In Mendel’s First law he states that every person has a pair of alleles for any trait that each parent passes randomly. Mendel’s Second law states that alleles from different genes are passed independently. This variation makes sense because when you are researching a subject you learn more about it as time goes on and you can perfect your knowledge of that subject.
(2) Define Codominance. Provide an example of codominance, highlighting genotype and phenotype ratios of the following generations: P, F1, F2.
Codominance is when both alleles are equal or are expressed equally. If a lizard had two dominant colors for its skin it could be blue and yellow at the same time without it just becoming green skin.
(3) Define Incomplete Dominance. Provide an example of incomplete dominance, highlighting genotype and phenotype ratios of the following generations: P, F1, F2.
Incomplete dominance is when the dominant allele is not completely dominant.
(4) Outline one example of inheritance involving multiple alleles.
Human blood type is one example of inheritance that involves multiple alleles. The type A allele is codominant with the type B alleles, and type A and B alleles are both dominant to blood type O which is is why human blood type has a couple different possibilities.
(5) How do polygenic traits produce the appearance of blending inheritance?
Allels that be founded on chromosomes may hold different dominant and recessive genes, forming blending or will be independantly inherited equal.