Genetics Lab 1

write the correct letter(s) for each mutation [blank_start]w[blank_end] white eyes [blank_start]y[blank_end] yellow body color [blank_start]f[blank_end] forked bristles [blank_start]B[blank_end] barred eyes [blank_start]dp[blank_end] dumpy wings [blank_start]vg[blank_end] vestigial (shriveled wings)

Which mutation(s) does this fruit fly possess? Include the letter designation.

Which mutation(s) does this fruit fly possess? Include the letter designation.

Check all that describe the "wild type" fruit fly

A fruit fly's bristles appear to diverge after a certain point so that one bristle has two ends. Which mutation(s) does this fruit fly possess? Include the letter designation.

Which is male and which is female?

To pipette 250 uL of a solution, it is best to use a

A garden pea plant that has the genotype Rr for its smoothed pea phenotype is a ___________ plant and uses __________ to produce gametes.

A garden pea plant that has the genotype Rr for its smoothed pea phenotype is _____________ for the trait of pea shape, and is ____________ for the gene determining the pea-shaped trait.

The law of equal segregation predicts this garden pea plant will produce two different kinds of gametes, carrying either the R allele or the r allele as a result of separation of homologous chromosomes during [blank_start]anaphase I[blank_end].

When a garden pea plant that has the genotype Rr for its smoothed pea phenotype has a self-cross and generates F1 offspring generation, one would predict that [blank_start]75%[blank_end] of the offspring would produce smooth pea, and [blank_start]25%[blank_end] of the offspring would produce wrinkled pea.

Thomas Morgan was convinced Gregor Mendel's theory was correct because

The Drosophila hedgehog (hh) gene was discovered in the 1980s. It is an important gene that encodes a secreted protein to regulate limb formation. Which of the statements below is incorrect?

The white gene is located on the X chromosome. There are [blank_start]1[blank_end] copy(ies) of white gene in a cell of a male fly and [blank_start]2[blank_end] copy(ies) in a cell of a female fly.

In describing the timing of Drosophila development, researchers use AEL to mean "After egg-laying" , for example, 40 h AEL means 40 hours afer egg laying. At 25 degrees C, a fruit fly of 75h AEL is in:

Peter identified that a gray body colored mutant fly is due to X-linked mutation, and the gray body color is a recessive phenotype. Which option below illustrates the proper way to write the genotype of such gray color mutant male fly when the symbol "G" illustrates the wild type allele and "g" the mutant allele?

When a female fly with recessive X-linked gray body color mates with a male fly with wild type body color, which of the following would Peter observe?

Normally a male of Aa genotype would produce sperms with genotype(s) of A or a. Occasionally non-disjunction happens during meiosis I of spermatogenesis and consequently results in sperm with genotype(s) of...

The mating of an Aa male and an aa female produced an offspring with the genotype AAa. Therefore, the resulting offspring has 3 copies of gene 1 (trisomy for Chromosome 1). At what stage during meiosis did the non-disjunction event occur and in which parent? Check all of the options that apply

The mating of an Aa male and an aa female produced an offspring with the genotype aaa. Therefore, the resulting offspring has 3 copies of gene 1 (trisomy for Chromosome 1). At what stage during meiosis did the non-disjunction event occur and in which parent? Check all of the answers that apply.