Exam (elaborations)

BIOL*1090 Mock Midterm Fall 2024 Answered 100% correctly

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Course
BIOL 1090 (BIOL1090)

Institution
University Of Guelph (U Of G )

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Uploaded on October 4, 2024
Number of pages 5
Written in 2024/2025
Type Exam (elaborations)
Contains Questions & answers

biol 1090
biol1090 mock midterm
biol 1090 mock midterm
centromeres
a sample of dna is found to contain 32 deoxycytid
a dna strand has the sequence 5 gtacggtatcactg 3
a single base pair mutation that r

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BIOL*1090 Mock Midterm
MULTIPLE CHOICE SECTION

1. A sample of DNA is found to contain 32% deoxycytidine. This sample must also contain:
a. 18% deoxyadenosine
b. 32% deoxyadenosine
c. 18% deoxyguanosine
d. 32% deoxythymidine
2. A DNA strand has the sequence 5’-GTACGGTATCACTG-3’. The complementary strand will be:
a. 5’-CAGTGATACCGTAC-3’
b. 5’-CATGCTGTAGTGAC-3’
c. 5’-GTACGGTATCACTG-3’
d. 5’-CATCATCATCATCA- 3’
3. Centromeres
a. prevent chromosome fusion
b. help DNA polymerase replicate the whole chromosome
c. provide a site of chromosomal attachment to the mitotic spindle
d. protect chromosomes from degradation of deoxyribonucleases
4. A single base pair mutation that results in premature termination of translation of the
corresponding mRNA is called a _____________ mutation.
a. nonsense
b. missense
c. non-conserved
d. silent
5. During meiosis, homologous chromosomes move towards opposite poles of the spindle during
a. Anaphase I
b. Metaphase I
c. Anaphase II
d. Metaphase II
6. Consider a short mature mRNA molecule with the sequence:
mGUAGACUAGAGCCAUGAUCAAGUUUACGAUUCAGUCAUAGAGAUACAGAAA
n

(where mG indicates the 5’ cap and An indicates a 3’ polyA tail)

How many amino acids would be in the encoded peptide?

a. 1
b. 8
c. 9
d. 17
7. Mutations in DNA
a. always result in genetic disease
b. are random
c. reduce genetic diversity
d. are an elaborate conspiracy theory, created to support the “Theory of Evolution”

This study source was downloaded by 100000891127392 from CourseHero.com on 10-04-2024 14:55:50 GMT -05:00

https://www.coursehero.com/file/241268282/BIOL-1090-Midterm-Questions-with-answers-1pdf/

, 8. Dr. Professor has decided to start experimenting with Mexican beans. In his sample of beans,
the allele for “jumping” (J) is dominant to the allele (j) “non-jumping”. In a monohybrid cross, if
the P generation consists of plants that are true breeding then the F2 generation will consist of
organisms that exhibit what ratio of jumping to non-jumping Mexican beans?
a. 3:2
b. 1:2
c. 1:3
d. 3:1

*Yes, I’m aware “jumping” trait in “Mexican Jumping Beans” actually comes from moth larva that are
living inside the beans. But in this case imagine it’s a genetic thing, and that some beans jump and other
beans don’t because of the J allele. Treat the beans like any other plant monohybrid cross.*

9. Using the pedigree below, and bearing in mind that this is a rare condition, what is the chance
that couple III-3 and III-4 will have an affected child?

a. 0
b. ¼
c. 1/3
d. ½
10. Referring the pedigree above, what are the odds of couple III-1 and III-2 having an affected
child?
a. 0
b. ¼
c. 1/3
d. ½
11. Papa McBaby-daddy is this week’s star on Maury Pouvich. Papa gets around and this week four
different women on the show are claiming that “he IS the father”. If Papa’s blood type is type O,
which of these children is he actually “NOT the father” of?
a. Danny (with blood type A)
b. Papa Jr (with blood type B)
c. Garry (with blood type AB)
d. Timothy (with blood type O)

This study source was downloaded by 100000891127392 from CourseHero.com on 10-04-2024 14:55:50 GMT -05:00

https://www.coursehero.com/file/241268282/BIOL-1090-Midterm-Questions-with-answers-1pdf/

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