What is the phenotype of TtRr?
Similarly, violet flowers (R) are dominant over white flowers (r). The gametes produced by TTRR and ttrr plants will be TR and tr respectively. The genotype of offsprings of F1 generation will be TtRr and phenotype will be tall and violet flowered plants.
What are the possible gametes for the genotype TtRr?
Since given genotype TtRr is heterozygous for two genes, thus total possible gametes by it = 22=4.
What does X mean in Punnett Squares?
X-linked alleles require a specific notation: Xc or X+ where the “+” represents the dominant allele and the lowercase letter the recessive allele. Females will have two X-linked alleles (because females are XX), whereas males will only have one X-linked allele (because males are XY).
How many gametes will be produced from Rrrr?
Thus the number of gametes produced by the plant having the genotype AABbCc is four.
How are four squares used in a Punnett square?
A Punnett square is a grid formed by 4 squares to form a larger square. Scientists use this as a way to predict a trait or genotype that comes from two different people or organisms. Before talking about how to use a Punnett square, the next important topic is alleles and the different types of alleles.
How does the Punnett square work for blood types?
Genotype for blood type AB and O As you can see from the punnett square, the offspring of these two people would have a 50% chance of the blood type A and a 50% chance of the blood type B. In this case, both of these blood types would be heterozygous because the genotypes consist of the o allele.
How are brown eyes represented in a Punnett square?
For example, blue eyes are a recessive trait and brown eyes are a dominant trait. Therefore, if a female has blue eyes they can be represented by “bb” and if a male has brown eyes this can be represented as “BB” or “Bb”. The reason why brown eyes can be represented as “Bb” is that the capital “B” is dominant over the lowercase “b”.
How to use a Punnett square to predict inheritance?
Know how to use a Punnett Square to predict inheritance for a monohybrid cross. If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.
