Exam1_multichoice - Forrr A BIO 311D Fall 2009 Dr. Zhao...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Forrr A BIO 311D Fall 2009 Dr. Zhao Name(print): Name(sign): EXAM 1 SELECT THE SINGLE BEST ANSWER FOR EACH OF THE FOLLOWING: (2.5 points for each question) I . An allele that expresses its phenotype even when heterozygous with a recessive allele is termed: a. recessive b. recombinant c. dominant d. parental e. independent 2. Which is NOT an example of evolution? a. Development of antibiotic-resistant bacteria. b. Flightless birds on islands without predators. c. This year's flu is different from last year's flu. d. A dog learns how to open the cabinet where its food is kept. e. Most commercial pesticides are effective fot 2-3 years. 3. If DdEe were crossed with DDee. what propoftion of the offspring are expected to be DdEe: ^. ll4 b. 314 c. 112 d. AII e. None 4. if you are a male. your X chromosome contains genes derived from: a. your paternal grandfather only. b. your maternal grandfather only. c. both your paternal and maternal grandfathers. d. both your paternal grandfather and grandmother. e. both your maternal grandfather and grandmother. 5. What is the correct format for the scientific nane of an extiuct carnivorous dinosaur? a. tllrarrnosaurus Rex b. T),ratrtrosaurus Rex c. Tyrannosaurus rex d Tyrunnosourus rex e. tyrannosaurus rex r l{;
Background image of page 1

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

View Full DocumentRight Arrow Icon
6, The dominant trait. Huntington disease causes severe neural/brain damage at approximately age 40. A female whose mother has Huntington disease, marries a male whose parents are normal. It is not known if the female has the disease. What is the probability that their first-born will inherit the gene that causes Huntington disease? a. 25" b. 50% c. 75% d. 100% e. 0% 7. Which of the following diseases show pleiotropism? a. albinism b. Duchenne Muscular Dystrophy c. colorblindness d. sickle cell anemia e. Achondroplastic dwarfism 8. Mitosis results in in chromosome number while meiosis results in chrom<lsome number. a. a doubling of, no change in b. no change in, no change in c. a reduction by half in, no change in d. no change in, a doubling of e. no change in, a reduction by half in 9. Red-green color-blindness is controlled by an X chromosomal gene in humans. A normal man and woman whose fathers are both color-blind marry. What is the probability that their first child u'ill be color-blirrd? 'l:'ii
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/06/2010 for the course BIO 49970 taught by Professor Chinnery during the Spring '10 term at University of Texas.

Page1 / 6

Exam1_multichoice - Forrr A BIO 311D Fall 2009 Dr. Zhao...

This preview shows document pages 1 - 3. Sign up to view the full document.

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