AP BIOLOGY

HEREDITY

MONOHYBRID CROSS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Two offspring from #9 are mated. What would the phenotypic ratio be from this cross? Make a new Punnett square and remember that horned is recessive.
A
3 (hornless):1 (horned)
B
2 (hornless):2 (horned)
C
4 (hornless):0 (horned)
D
0 (hornless):4 (horned)
Explanation: 

Detailed explanation-1: -Asexual reproduction generates offspring that are genetically identical to a single parent. In sexual reproduction, two parents contribute genetic information to produce unique offspring.

Detailed explanation-2: -To form a fetus, an egg from the mother and sperm from the father come together. The egg and sperm each have one half of a set of chromosomes. The egg and sperm together give the baby the full set of chromosomes. So, half the baby’s DNA comes from the mother and half comes from the father.

Detailed explanation-3: -Explanation: When two parents are crossed, the offspring will be referred to as the F1 generation.

Detailed explanation-4: -An individual inherits two alleles, one from each parent, for any given genomic location where such variation exists. If the two alleles are the same, the individual is homozygous for that allele. If the alleles are different, the individual is heterozygous.

There is 1 question to complete.