final exam practice test

final exam practice test - BIOL 1020: Principles of Biology...

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

View Full Document Right Arrow Icon
BIOL 1020: Principles of Biology FINAL EXAM Fall 2005 1. An organism with the genotype of AaBb (A and B are on different chromosomes) can produce _____different types of gametes? A. 8 B. 4 C. 2 D. 6 2. An organism with a dominant phenotype is crossed with a homozygous recessive organism. None of 100 offspring are homozygous recessive. The genotype of the dominant parent is: A. AA B. Aa C. aa D. ab 3. People expressing the cystic fibrosis trait are ___________ for the disease gene. A. homozygous dominant B. heterozygous C. homozygous recessive D. X-linked 4. An unaffected couple (neither father nor mother have the disease) has two hemophilic sons and two normal daughters. This is because A. mother is a carrier and has X h X H genotype B. hemophilia is an autosomal recessive C. hemophilia is a sex influenced trait D. father is a carrier and has X H / h genotype 5. Down's syndrome is caused by A. an extra copy of chromosome # 4 in most cases. B. an extra copy of chromosome # 21 in most cases. C. loss of one of the chromosome # 21. D. errors in mating behavior. 6. An allele is a(n) A. phenotype B. alternate form of a gene C. deformed chromosome D. genotype 7. In the absence of crossing over between the genes (A and B) on the same chromosome, a parent with AaBb genotype can produce _________ different kinds of gametes. A. 0 B. 2 C. 4 D. 6 8. If the phenotypic ratio among offspring in a cross is 1(Tall) : 1 (Short), the genotypes of the two parents is: A. TT and tt B. Tt and tt C. tt and tt D. TT and Tt 9. Which condition results from a nondisjunction (irregular separation) involving the sex chromosome? A. Down B. Edwards C. Patau D. Turner 10. A male human with BARR body indicates that this person has _____________________. A. Huntignton’s disease B. Turner’s syndrome C. Klienfelter’s syndrome D. Down’s Syndrome 11. Jack has type AB blood. His father was type A and his mother was type B. Jill is type B. Her father was type AB, and her mother was type B. What possible offspring (in relation to blood type) could Jack and Jill have? A. A and B C. A, B and AB E. AB and B B. A, B, O, and AB D. O, A, and AB 12. The frequency of crossing-over between two genes on the same chromosome: A. is proportional to the distance between the two genes B. is always the same. C. is so small it cannot be measured. D. depends on its location on chromosome 13. Turner’s syndrome is an example of ___________ A. trisomy B. monosomy C. polyploidy D. non of the above 14. Genes in the sex chromosomes of human male are______________ A. heterozygous B. hemizygous C. homozygous 15. Down’s syndrome is an example of ___________. A. monosomic B. trisomic C. polyploidy D. disomic
Background image of page 1

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

View Full DocumentRight Arrow Icon
16. Duplicated genetic material is divided equally at____________ during mitotic cell division. A. prophase
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 04/07/2008 for the course BIOL 1020 taught by Professor Dute during the Fall '06 term at Auburn University.

Page1 / 6

final exam practice test - BIOL 1020: Principles of Biology...

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