Week 12 Quiz

these are repetitive caps at the end of DNA Strands, made by a specific enzyme and carries its own RNA primer

• telomeres

• DNA Caps

• Okazaki fragments

• single stranded binding proteins

this enzyme prevents super coiling of the DNA double strand

Match the following!

• polymerase activity 5' to 3'.

• DNA polymerase 1

• builds DNA and proofreads new strands

• DNA polymerase III

• re-anneals Okazaki fragments

• Helicase

• unwinds DNA double helix

• Ligase

• provides a primer for synthesis

• Primase

In a two-point cross to map genes A and B, you obtained 98 recombinant flies out of a total of 730 progeny. How far apart are these genes?e these options into the right categories

• 121.8cM

• 13.4cM

• 1.2cM

• 0.134cM

In Griffith's transformation experiments,

• the R form transformed the S form into a virulent variety of the bacteria.

• mice infected with live R form caused pneumonia and death in mice.

• the S form lacked an enzyme involved in the manufacture of the polysaccharide coat, leading to the abnormally smooth colonies.

• mice infected with heat-killed S form and live R form caused pneumonia and death in the mice.

which of these is not true about the DNA Structure (multiple answers)

• it is composed of base, sugar, and nucleotide

• it is composed of a double helix

• it uses the nucleotides A, T, U, G

• it has two strands

how many origins of replications are present in prokaryotes vs eukaryotes

• 1,0

• 0,1

• 1, multiple

• multiple, 1

A female fruit fly has the genotype WwAAbbPp. In terms of these 4 allele pairs, how many different types of gametes can he form?

• 4

• 2

• 16

• 8

Which of the following lists is in the correct order, from the least inclusive to the most inclusive?

• gene - allele – chromosome

• allele - gene – chromosome

• allele - chromosome – gene

• gene - chromosome - allele

Each chromosome has a ___________, a point of constriction containing certain repeated DNA sequences that bind specific proteins.