Quiz 1 2009 - Chromosome Chromatid a) Anaphase II...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Genetics 380, Fall 2009 QUIZ # 1A Total = 20 points Name__________________ Section_________________ 1. For each of the term in the left, choose the best matching phrase in the right column(5 pts): ______a. dominant allele 1. a cross between individuals both heterozygous for two genes ______b. independent assortment 2. the separation of the two alleles of a gene into different gametes ______c. segregation 3. the allele that does not contribute to the phenotype of the heterozygote ______d. testcross 4. alleles of one gene separate into gametes randomly with respect to alleles of other genes ______e. dihybrid cross 5. an individual with two different alleles of a gene 6. a cross between individuals both homozygous for two genes 7.the allele expressed in the phenotype of the heterozygote 8.the cross of an individual of ambiguous genotype with a homozygous recessive individual 2. A diploid cell has a ploidy number of 2N = 24. How many chromosomes and chromatids will be in each cell in the following phases? (4 pts)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Chromosome Chromatid a) Anaphase II ___________ __________ b) Prophase ___________ __________ c) Telophase II ___________ __________(after cytokinesis) d) Metaphase I ___________ __________ 3. A cross between two pea plants, both of which grew from yellow round seeds, gave the following numbers of seeds: 156 yellow round and 54 yellow wrinkled. What are the genotypes of the parent plants (yellow is dominant trait)? (4pts)? 4. Three mutants were isolated in a normally red fungus. The mutations are found to be in different genes. Mutant A (A-) is white, mutant B (B-) is colorless, and mutant C (C-) is pink. Through crossing, lab technician obtained the following double mutants and the corresponding phenotypes, A-B-showed colorless and A-C-showed white color. Please use above phenotypes to figure out the pathway, both colors and enzymes: (6 pts)--------> --------> ---------> Red pigment Enzyme Enzyme Enzyme What color will B-C-double mutant look like? (1pts)...
View Full Document

This note was uploaded on 01/31/2011 for the course GENETICS 380 taught by Professor Glodowski during the Spring '08 term at Rutgers.

Page1 / 2

Quiz 1 2009 - Chromosome Chromatid a) Anaphase II...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online