In sesame plants, the one-pod condition (P) is dominant to the three-pod condition (p), and normal leaf (L) is dominant to wrinkled leaf (l). Pod type and leaf type are inherited independently. Determine the genotypes for the two parents for all possible cross producing the following offspring:

(a) 300 one-pod, normal leaf and 100 one-pod, wrinkled leaf

(b) 323 three-pod, normal leaf and 106 three-pod, wrinkled leaf

(c) 150 one-pod, normal leaf, 147 one-pod, wrinkled leaf, 51 three-pod, normal leaf, and 48 three-pod, wrinkled leaf

(d) 223 one-pod, normal leaf, 72 one-pod, wrinkled leaf, 76 three-pod, normal leaf, and 27 three-pod, wrinkled leaf

#Question id: 5760

#Unit 8. Inheritance Biology

The fluctuation test of Luria and Delbruck (studying resistance to bacteriophge T1 infection) established that

#Question id: 5761

#Unit 8. Inheritance Biology

E. coli cells were spread on an agar plate, producing 1000 colonies.  The colonies are replica plated on two agar plates containing the antibiotic kanamycin and one agar plate without antibiotics.  All of the colonies are able to grow on the agar plate without antibiotic but only 4 colonies are able to grow on each of the agar plates containing kanamycin.  You notice that the four colonies that grew on each of the kanamycin containing plates are in the exact same position.  This demonstrates

#Question id: 5762

#Unit 8. Inheritance Biology

An individual cell homozygous for a mutant allele of the gene for a human enzyme contains no detectable activity for that enzyme. The mutation is best described as

#Question id: 5763

#Unit 8. Inheritance Biology

A mutation that causes a mutant phenotype only under restrictive conditions

#Question id: 5764

#Unit 8. Inheritance Biology

A wild-type chromosome can be represented as ABC * DEFGH, and from this a chromosomal aberration arises that can be represented AFED * CBGH. This is known as (* = centromere)

#Question id: 5765

#Unit 8. Inheritance Biology

How many different trisomics could be formed in a plant with a diploid number of 12?