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The phenotype of vestigial (short) wings (vg) in Drosophila melanogaster is caused by a recessive mutant gene that independently assorts with a recessive gene for hairy (h ) body. Assume that a cross is made between a fly with normal wings (homozygous) and a hairy body and a fly with vestigial wings and normal body hair (homozygous). The wild-type F1 flies were crossed among each other to produce 1024 offspring. How many of the F2 flies would you expect to have normal wings and a hairy body?

The only haploid cells in animals are:

this is a media commentAUDIO CASE: Please read the questions below first and then listen to the audio file to help you answer the questions below.  A 69 year-old female presents to your clinic reporting gradual worsening of speech function over the last two years. Her medical history is otherwise unavailable to you.  A. Based on the audio sample, list at least two perceptually deviant speech characteristics that you hear (2 points) and tell me what speech subsystem (i.e. respiratory, laryngeal, velopharyngeal, etc.) each feature highlights for you (2 points). B. What motor speech diagnoses do you think most accurately describes this patient (1 point)?

The true-breeding plants Mendel worked with had what type of genotype?

Given the parent cell shown below, which cell or group of cells represents metaphase II?

Given the parent cell shown below, which cell or group of cells represents anaphase I?

When a loop forms in a chromatid during meiosis, what type of chromosome mutation can result?

What is the probability that two parents of normal height will have a child with achondroplasia?

The phenotype of vestigial (short) wings (vg) in Drosophila melanogaster is caused by a recessive mutant gene that independently assorts with a recessive gene for hairy (h ) body. Assume that a cross is made between a fly with normal wings (homozygous) and a hairy body and a fly with vestigial wings and normal body hair (homozygous). The wild-type F1 flies were crossed among each other to produce 1024 offspring. What is the genotype of the fly with the normal wings and hairy body?

A recessive allele is one that: