Q1 - In a cross between a homozygous dominant parent and a homozygous recessive

Question

Q1 - In a cross between a homozygous dominant parent and a homozygous recessive parent, the number of phenotypic classes observed in the offspring is ____________________.

Q2 - An albino woman has a child with a phenotypically normal man but with a family history of albinism (which is a rare recessive disorder). Theoretically, and depending on the genotype of the father, what percentage of their children could be albino?

Q3- An individual with the dominant phenotype, but an unknown genotype, is testcrossed, and all of the offspring exhibit the dominant phenotype. The genotype of the unknown individual is ____________________.

Q4 - If two individuals heterozygous for a recessive disease have a child, what is the chance that their child will develop the disease?

Q5 - If two individuals heterozygous for two recessive genetic diseases have children, what is the probability that any of them will suffer both conditions?

Q6 - In a monohybrid cross between two parents that exhibit the dominant phenotype, ___ percent of the offspring will exhibit the recessive phenotype.

Q7 - In a particular type of tomato plant, red fruit (R) is dominant over yellow fruit (r), and tall height (T) is dominant over dwarf height (t). If two plants heterozygous for both loci were crossed, what proportion of the offspring would be tall and have red fruit?

Q8- In a cross between a BbRr individual and a BBRR one, what do the following represent: BR, Br, bR, br?

Q9 - In a given plant species, green flowers (G) are dominant over white (g). From a test cross between a plant with green flowers (but unknown genotype) and a plant with white flowers, you obtain 46 plants with green flowers and 58 plants with green flowers. What happened?

Q10 - In humans, the gene that determines whether an embryo develops as a male or a female is carried on ____________________.

Explanation / Answer

Ans 1: 1

Ans 2: 50%

Ans 3: Homozygous dominant.

So ? has to be some domninat allele, say A. then the Punett will be as:

Ans 4: 25%

1/4 is recessive aa.

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.