How many different phenotypes are possible in the offspring quizlet?
With two alleles for a trait, up to three phenotypes are possible. With three alleles, up to six phenotypes are possible.
How do you determine the number of different phenotypes?
There is a range of phenotypes, but most of the offspring are similar in color to the parents. If n = the number of gene pairs, then (2n + 1) will determine the total number of categories of phenotypes.
What are 3 possible phenotypes?
If the only alleles for hair texture were straight and curly, there would be three phenotypes: straight, curly, and wavy. However, you asked for something a little different. You wanted three phenotypes that are all equally represented in the population.
How many different phenotypes are possible for offspring?
Figure 13: The possible genotypes for each of the four phenotypes. Even though only four different phenotypes are possible from this cross, nine different genotypes are possible, as shown in Figure 13.
How many different genotypes are possible among the offspring?
Genotype is also used to refer to the pair of alleles present at a single locus. With alleles ‘A’ and ‘a’ there are three possible genotypes AA, Aa and aa. With three alleles 1, 2, 3 there are six possible genotypes: 11, 12, 13, 22, 23, 33. First we must appreciate that genes do not act in isolation.
How do you determine the number of phenotypes and genotypes?
The number of different genotypes is 3 n where n = number of genes. For simple dominant–recessive relations, the number of different phenotypes is 2 n , where n = number of genes. d.
How do you calculate phenotypic variation?
Variance Components of a Quantitative Trait
- VP = VG + VE + VGE VP = total phenotypic variation of the segregating population. …
- VG = VA + VD + VI and the total phenotypic variance can be rewritten as.
- VP = VA + VD + VI + VE + VGE …
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How many phenotypes are possible?
A fetus receives one of these three alleles from each of its parents. This produces four possible phenotypes (blood types) and six possible genotypes.
What are examples of phenotype?
Examples of phenotypes include height, wing length, and hair color. Phenotypes also include observable characteristics that can be measured in the laboratory, such as levels of hormones or blood cells.
What are the 3 types of genotypes?
There are three types of genotypes: homozygous dominant, homozygous recessive, and hetrozygous.
What are 3 ways that the genotype determines phenotype?
Phenotype is defined as an organism’s expressed physical traits. Phenotype is determined by an individual’s genotype and expressed genes, random genetic variation, and environmental influences. Examples of an organism’s phenotype include traits such as color, height, size, shape, and behavior.