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1 ________ is seen when ABCDEFGHI becomes ABCFEDGHI.  A. deletion...

1 ________ is seen when ABCDEFGHI becomes ABCFEDGHI.

 A. deletion

 B. duplication

 C. translocation

 D. transposition

 E. inversion


2 Which amino acid can sometimes be present at the P site without first entering the A site of the ribosome?

  A. leucine

 B. methionine

 C. alanine

 D. tryptophan


3 For her science fair project, your little sister replicated one of Mendel's experiments. From a P0 pea plant with purple flowers and a pea plant with white flowers, she got 1 purple F1 hybrid (she had forgotten to water, so just one survived). From this self-fertilized F1 she got 8 F2 offspring. 7 were purple and 1 was white, for a 7:1 ratio.

Did your little sister just disprove Mendel's laws?

 A. Yes. This, and other examples of non-Mendelian genetics demonstrate that Mendel's Laws are actually incorrect and misleading.

 B. No. When another pea pod forms on the plant, that will bring the numbers up to the correct 9:3, or 3:1 ratio

 C. No. Dehydrating the parent caused Lamarckian selection on the offspring.

 D. No. Random chance can cause deviations in the ratio of small numbers of progeny.


4 What does a spliceosome remove from pre-mRNA during the process of splicing?

 A. introns

 B. exons

 C. spliceons

 D. 7-methlyguanosine

 E. poly-A tail


5 Why did Mendel's work go unnoticed?

 A. The scientific community believed new traits develop through mutation

 B. The scientific community believed new traits developed through blending of traits from parents.

 C. The scientific community believed dominant traits would always mask recessive traits

 D. The scientific community believed that physical characteristics were dependent on many genes interacting.

 E. The scientific community believed that traits are inherited in distinct groups.


6 Seed texture, plant height, pea pod color are all considered _________?

 A. alleles

 B. factors

 C. traits

 D. recessive

 E. dominant


7 ________ found in the -10 sequence makes it easier for the DNA to separate.

 A. G-C base pairs

 B. Template strands

 C. Non-template strands

 D. A-T base pairs

 E. Start codons


8 How can an UV induced mutation affect DNA?

 A. Creating thymine dimers between thymines next to each other

 B. Creating cytosine dimers between cytosines next to each other

 C. Creating adenine dimers between adenines next to each other

 D. Creating guanine dimers between guanines next to each other


9 One of your young pediatric patients was discovered to have a mutation in a gene involved in nucleotide excision repair. What is the best recommendation you can make to the parents?

 A. Discourage her from using tanning beds when she gets older, and put sunscreen on when she will be out in the summer sun for more than a few hours.

 B. She should eat lots of fresh fruits and vegetables so her body can produce extra DNA on a regular basis.

 C. Be sure she wears sun protective gear and sunscreen every day, avoids sunlight, and takes a Vitamin D supplement.

 D. Discourage her from smoking cigarettes when she is older.


10 Comb shape in chickens. Rose (A) is dominant over nonrose (a). Pea (B) is dominant over nonpea (b). Dominants for rose and pea produce a walnut comb. Homozygous for rose and pea produce a single comb. This describes

 A. epistasis

 B. polygenic

 C. pleiotropy

 D. hemizygosity

 E. dominance


11 What is the process of ribosomes making proteins?

 A. translation

 B. replication

 C. transcription

 D. mutation

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