96ex1 - Student name_ AGR 3303 - Genetics 26 Sep 1996...

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

View Full Document Right Arrow Icon
AGR 3303 - Genetics 26 Sep 1996 Hourly exam #1 PARTICULATE GENETICS Multiple choice 60 pts. Please read these carefully . One and only one response (a, b, c, d, or e) completely and correctly answers the question, or completes the statement. Circle the appropriate response and turn in this exam. Make sure your circle is unambiguous. Take time to relax. (Suggestion: put the problem into gene symbols, if that helps you to visualize the problem and its solution.) 1. A genetics class grew 200 corn seedlings, which were expected to segregate in a 3:1 Mendelian ratio. The observed numbers of seedlings were 161 green:39 albino. Based on the tabular probability value from chi square (P=0.072), we conclude that: a. the null hypothesis cannot be accepted b. Mendelian genetics does not adequately explain the results c. the genes are not assorting independently d. the genes must be linked e. none of the above 2. Color of chickens is determined by interacting loci: AA or Aa give white, aaBB or aaBb give colored, and aabb produces white. What are the phenotypic frequencies of the offspring from a cross between a heterozygous white chicken (Aabb) and a heterozygous colored (aaBb) chicken? a. 15 white : 1 colored b. 13 white : 3 colored c. 3 white : 1 colored d. 9 white : 7 colored e. none of the above 3. If an organism has 2n=8, then a. during mitosis there will be 8 chromosomes going to each pole b. during meiosis there will be 4 chromosomes going to each pole c. during meiosis, there will be 4 pairs of chromosomes d. all of the above e. none of the above 4. Darwin's theory, presented in The origin of species , explained what? a.
Background image of page 1

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

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

Page1 / 6

96ex1 - Student name_ AGR 3303 - Genetics 26 Sep 1996...

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