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1. A blue-eyed boy was born in a family where both parents are brown-eyed. What kind of variability manifested itself in this case? Explain all the possible mechanisms of such variability.
The only way to present blue eyes is to inherit two copies of the blue-eyed gene. However, brown-eyed parents can pass a recessive blue-eyed gene. Therefore, two brown-eyed partners can...
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A blue eyed boy was born in a family where both parents are brown-eyed.What kind of variability manifested itself in this case?Explain all the possible mechanism of such variability.
The brown eye form of the eye color gene (or allele) is dominant, whereas the blue eye allele is recessive. If both parents have brown eyes yet carry the allele...
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Can a person having blood group A+ donate blood to a person having blood group AB+?
Yes, person with blood group A+ could be a donor forperson with AB+. Person with AB+ has both antigens, and immuneresponse will not be induced by A+. Cells of both...
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A person met with an accident and was seriously injured. He needed blood. His blood group was found to be B. He can take blood from people having blood group____________ * 1 point
Blood group B.In people with blood group B, the surface of the red blood cells contains B antigen, and the plasma has anti-A antibody. As a result, B positive patients cannot receive blood group A...
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What environments do white-eyed flies prefer compared to red-eyed wildtype flies? How are the preferences between the two eye color phenotypes different?
Red eyed flies are attracted to light while white eyed flies are sensitive to light and prefer environments with lower light intensity. The white eyed fly survives in red light...
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In pirates brown eyes are dominant to blue eyes, show the cross between a heterozygous brown-eye pirate with a blue-eyes pirate. State the phenotypic ratio
B – brown eyes b – blue eyes Bb x Bb= BB, Bb, Bb, bb A phenotypic ratio represents a relationship between the different physical characteristics and how often they...
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. A brown-eyed man marries a blue-eyed woman, and they have eight brown-eyed children. What are the genotypes of all the individuals in the family?
The brown eye colour is a dominant trait because it has expressed in F, children and thus denoted by B, whereas blue eye should be denoted by b. Since all...
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A mother with blue eyes (bb) and a father with brown eyes (Bb) want to have children.
Mother: ________ x Father: _________
Genotypes Phenotypes %
Mother: bb x Father: BbChildren:Genotypes: Bb - 50%; bb - 50%Phenotypes: brown eyes (Bb) - 50%; blue eyes (bb) - 50%.
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If you cross a homozygous dominant almond shape eyes with homozygous recessive round shape eyes, what is the probability that the offspring will have phenotype of almond shape eyes?
Almond shape eyes - dominant trait, let it be Rround shape eyes - recessive trait, so it will be rThe cross : RR * rrOffspring: Rr (so the phenotype -...
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In rabbits straight ears are dominant to floppy ears. Black eyes are dominant to red eyes. Two rabbits are crossed. SSBB x ssbb what are the parents phenotypes
Phenotype: It is the observable trait in an individual because of the genetic makeup for that trait. Like here, the phenotype i.e. the observable trait in the rabbit are floppy...
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