In a population of 100 jellyfish the gene for body color (blue or purple) is controlled by a single diploid gene. The allele for blue (B) is dominant over the allele for purple(b), 43 jellyfish in the population are purple.
a. What is the frequency of the dominant allele (B)?
b. What is the heterozygous genotype frequency (Bb)?
c. How many homozygous dominant jellyfish are there in the population?
In a population of 100 jellyfish the gene for body color (blue or purple) is controlled...
An Amazon rainforest population of leaf beetles has 100,000 individuals. The beetles exist in two color morphs, purple and green. Purple beetles live on epiphytic orchid blooms whereas the green beetles inhabit the leaves of the orchid plants. The color is controlled by two alleles at a single gene locus. The purple allele (P) is dominant to the green allele (p) 36% of the beetle population is green and the other 64% of the population is purple. Assuming the population...
In humans, brown (B) eye color is dominant to blue (b) eye color and brown (H) hair color is dominant to red (h) hair color. [Assume single-gene traits] Of only the offspring that have brown eyes and brown hair (B_H_, where dash indicates that the individual could be either homozygous or heterozygous for the dominant allele), what proportion are expected to have a genotype that is heterozygous for one of the traits but homozygous for the other trait? A) 1/4...
Calculating expected genotypic frequencies and individuals in a population from allele frequencies: 3.1 In a population of peas, the frequency of the dominant allele for a purple flower is 0.77 and the frequency of the recessive allele for a white flower is 0.23. What would the genotypic frequencies be if the population is in equilibrium? _____ = Frequency of homozygous dominant individuals _____ = Frequency of heterozygous individuals _____ = Frequency of homozygous recessive individuals How many individuals would you...
In a population of Mendel's garden peas, the frequency of the dominant A (purple flower) allele is 80%. Letp represent the frequency of the A allele and q represent the frequency of the a allele. Assuming that the population is in Hardy-Weinberg equilibrium, what are the genotype frequencies? A. 16% AA, 40 % Aa, 44 % aa B. 80% AA, 10 % Aa, 10 % aa C. 50 % AA , 25 % As , 25 % aa * E....
A population of flour beetles has 1000 individuals. Normally the beetles are red in color; however, this population has a utation in the gene for body color that results in black beetles that are designated by the rr genotype. Red body color is dominant to black so the genotypes RR and Rr result in red beetles. Assume the population is in Hardy-Weinberg equilibrium, with a 50% frequency of each allele for body color. A) --- what is the frequency of...
A wildflower native to California, the dwarf lupin (Lupinus nanus) normally bears blue flowers but occasionally bears pink flowers. Flower color is controlled by a single diploid locus, with the blue allele (B) completely dominant over the pink allele (b). In a wild population of lupins, there are 43 pink lupins and 3398 blue lupins, for a total of 3341. Calculate the genotype and allele frequencies of this population, assuming that the population is in Hardy-Weinberg equilibrium: Genotype frequency of...
Fictional scenario: Individuals with green hair have the presence of the dominant gene "Z" and people with purple hair are homozygous for the recessive allele “z”. There were 200 students in a classroom who were surveyed for their hair color and 155 people had green hair whereas 45 people had purple hair. Use the information to answer the next set of questions. Show your work for credit. 1) What are the variables for a recessive allele? A dominant allele? Homozygous...
In beetles, a gene coding for body color and a gene coding for bristle length are located on the same chromosome. Black (B) is dominant over grey body (b) and long bristles (s) are recessive to short bristles (S). A beetle that is heterozygous for black body and short bristles is mated with one that has a grey body and long bristles. What are the genotypes of the parents? ____________ ____________ Assume that the B allele is linked with the...
7) In humans, brown eyes (B) are a simple dominant trait over blue eyes (b). What is the genotype of a brown-eyed woman who has a blue-eyed child? A)bb -B)Bb С)ВВ D)BBB E) BbBb 8) The ability to roll the edges of the tongue upward in a U-shape is inherited as a dominant allele at a single gene locus, Which of the following genotypes would produce an individual that can roll their tongue? A)TT only B)Tt only C) only D)TT...
Testing the goodness of fit between the data and the Hardy Weinberg equilibrium model generated expectations. 4.1 In a species of bird, feather color is controlled by genes at a single locus, with the red feather allele dominant to the yellow feather allele. A population has 22 red and 14 yellow birds, with 9 of the red birds having a homozygous dominant genotype. Is this population in equilibrium? Calculate p and q from the number of individuals of each genotype:...