Is the following sentence true or false even though a gene has multiple alleles a person can carry two of those alleles?

Is the following sentence true or false even though a gene has multiple alleles a person can carry two of those alleles?

Even though a gene has multiple alleles, a person can carry only two of those alleles. TRUE 5. Complete the table by writing all possible combinations of alleles for each blood type.

Is the following question true or false a carrier for colorblindness is colorblind?

So, for a male to be colour blind the colour blindness ‘gene’ only has to appear on his X chromosome. For a female to be colour blind it must be present on both of her X chromosomes. If a woman has only one colour blind ‘gene’ she is known as a ‘carrier’ but she won’t be colour blind.

Why do some human traits such as height and skin color show a large number of phenotypes?

In fact, there is an enormous variety of phenotypes for height. Some human traits show a large number of phenotypes because the traits are controlled by many genes. The genes act together as a group to produce a single trait. Skin color is another human trait that is controlled by many genes.

When many genes control a trait the trait will show a large number of what?

Traits that show a large number of phenotypes are usually controlled by many genes. With multiple genes and two or more alleles for each gene, there are many possible combinations of alleles and phenotypes.

What type of mutation causes color blindness?

Blue-yellow color vision defects result from mutations in the OPN1SW gene. These mutations lead to the premature destruction of S cones or the production of defective S cones.

What causes Colour blindness?

In the vast majority of cases, colour vision deficiency is caused by a genetic fault passed on to a child by their parents. It occurs because some of the colour-sensitive cells in the eyes, called cones, are either missing or do not work properly.

Why is skin color a polygenic trait?

Like eye color, skin color is an example of polygenic inheritance. This trait is determined by at least three genes and other genes are also thought to influence skin color. The genes that determine skin color have two alleles each and are found on different chromosomes. …

What genes control height?

These genes (and the conditions they are associated with) include FBN1 (acromicric dysplasia, geleophysic dysplasia, Marfan syndrome), GH1 (isolated growth hormone deficiency), EVC (Ellis-van Creveld syndrome, Weyers acrofacial dysostosis), and GPC3 (Simpson-Golabi-Behmel syndrome).

Which is the frequency of the recessive allele in the population?

To determine q, which is the frequency of the recessive allele in the population, simply take the square root of q 2 which works out to be 0.632 (i.e. 0.632 x 0.632 = 0.4). So, q = 0.63. Since p + q = 1, then p must be 1 – 0.63 = 0.37. Now then, to answer our questions.

How to calculate the frequency of homozygous dominant individuals?

The frequency of homozygous dominant individuals. Answers: The first thing you’ll need to do is obtain p and q. So, since white is recessive (i.e. bb), and 40% of the butterflies are white, then bb = q 2 = 0.4.

Why are the frequencies of the two phenotypes different?

The frequencies of the two possible phenotypes if “A” is completely dominant over “a.” Answers: Because “A” is totally dominate over “a”, the dominant phenotype will show if either the homozygous “AA” or heterozygous “Aa” genotypes occur.

Which is better, homozygous condition or heterozygosus condition?

However, individuals with the heterozygous condition (Ss) have some sickling of red blood cells, but generally not enough to cause mortality. In addition, malaria cannot survive well within these “partially defective” red blood cells. Thus, heterozygotes tend to survive better than either of the homozygous conditions.