Sex Linked Traits Worksheet Ap Biology
This 6 page worksheet provides practice problems for sex linked traits and pedigrees.
Sex linked traits worksheet ap biology. 9th through 12th grade age. Red is dominant to white. Science ap biology fall 2016. Red green color blindness is caused by a sex linked recessive allele.
X r y x x r x r. Sex linked traits worksheet combined files pdf. Eye color in drosophila the common fruit fly was the first x linked trait to be identified thomas hunt morgan mapped this trait to the x chromosome in 1910. Recessive traits baldness colorblind hemophilia carrier add to my workbooks 0 download file pdf embed in my website or blog add to google classroom.
X r y x x r x r. Sex linked traits other contents. Sex linked traits ratio what they are examples word problems how to solve them. Usually such genes are found on the x chromosome.
Sex linked traits if a gene is found only on the x chromosome and not the y chromosome it is said to be a sex linked trait. Red eyed male x white eyed female. Because the gene controlling the trait is located on the sex chromosome sex linkage is linked to the gender of the individual. Alleles are located on the sex chromosomes xx and xy example.
Sex linked traits worksheet combined files pdf. Students need to fill in punnet squares calculate the probability that sons or daughters will carry a trait and determine if a trait is sex linked via pedigrees. In fruit flies eye color is a sex linked trait. 10 drops of cellulase 10 drops of pectinase 5 drops of pectinase 5 drops of.
This can be completed together in class as an. This worksheet is designed for beginning biology students as it provides in most cases the genotypes for the crosses are provide or students are given a model to use to determine the genotypes of the cross. In this extension students can practice doing crosses that involve sex linked traits where the alleles are located on the x chromosome which affects the pattern of inheritance. A color blind man marries a woman with normal vision whose father was color blind.
Like humans drosophila males have an xy chromosome pair and females are xx in flies the wild type eye color is red xw and is dominant to white eye color xw figure 15 because of the location of the eye color gene reciprocal. Science biology library classical and molecular genetics sex linkage chromosomal mutations non nuclear inheritance sex linked traits google classroom facebook twitter.