IB 150 EXAM 2 HOMEWORKS WITH COMPLETE ANSWERS
1. Most of the genetic material of eukaryotes is located
in nucleus
the ---- of the cells. The ---- of the organism is organized
genome
on linear pairs of ----- , each of which consist of chromosome
a long, unbroken ----- molecule of whose s
sequence of double-strande
d
----carries the genetic information to make ---- . Hence, DNA
it is the action of the proteins encoded by your ---- that nucleotide
bases
links your unique set of genetic information, your ---- , proteins
to your physical, observable ---- . 3. In the Morse
code, a series
of two signal
types (dots
2. What does this structure represent on a and dashes)
molecular level? code for 26
different
a. Two sister chromatids attached at the
letters of the
centromere (constriction)
alpha- bet.
b. A single, double-stranded molecule of DNA
How is this
in the condensed state
analogous to
c. A condensed collection of thousands to
the genetic
millions of DNA molecules
code? Select
d. Two double-stranded molecules of DNA
one:
connected at the centromere (constriction in
middle of image)
e. A single, single-stranded molecule of DNA
in the condensed state
f. Two single-stranded molecules of DNA
connected at the centromere (constriction in
middle of image)
, IB 150 EXAM 2 HOMEWORKS WITH COMPLETE ANSWERS
genes genotype phenotype
A single, double-stranded molecule of DNA in the condensed state
The bases of DNA code for the more complex amino acid sequence of
the pro- teins in cells.
, IB 150 EXAM 2 HOMEWORKS WITH COMPLETE ANSWERS
a. There is complementarity in the genetic the reading
code (A is complementary to T, and C is frame the
complementary to G). ribosome wil
b. The bases of DNA code for the more complex use.
amino acid sequence of the proteins in cells. Note:
c. The bases that make up DNA are coded by Translation
the sug- ar-phosphate backbone. always
d. The machinery involved in DNA synthesis is proceeds from
anal- ogous to the telegraph equipment 5' to 3', and
used in sending Morse code. starts at the
START codon!
4. During transcription, the DNA double-strand is
sepa- rated, and a gene is transcribed by RNA
polymerase. Transcribe the shown stretch of
the template (tran- scribed) strand of the
DNA molecule into the mRNA molecule by
writing out the appropriate RNA nu-
cleotides of the growing mRNA strand from
left to right.
Write your answer below as mRNA bases from
left to right on the shown mRNA molecule
shown above. Do not include spaces or other
symbols between the bases.
5. Consider the following mRNA
transcript: 5'-
UCUGAUGGGCUGAGUA-3'
Assuming that this is the complete mRNA
molecule, how will ribosomes translate its
sequence into a polypeptide chain? Consult the
messenger RNA codon chart to help you
translate the mRNA sequence. Be mindful of
, IB 150 EXAM 2 HOMEWORKS WITH COMPLETE ANSWERS
GUUACCGAU
methionine, glycine
1. Most of the genetic material of eukaryotes is located
in nucleus
the ---- of the cells. The ---- of the organism is organized
genome
on linear pairs of ----- , each of which consist of chromosome
a long, unbroken ----- molecule of whose s
sequence of double-strande
d
----carries the genetic information to make ---- . Hence, DNA
it is the action of the proteins encoded by your ---- that nucleotide
bases
links your unique set of genetic information, your ---- , proteins
to your physical, observable ---- . 3. In the Morse
code, a series
of two signal
types (dots
2. What does this structure represent on a and dashes)
molecular level? code for 26
different
a. Two sister chromatids attached at the
letters of the
centromere (constriction)
alpha- bet.
b. A single, double-stranded molecule of DNA
How is this
in the condensed state
analogous to
c. A condensed collection of thousands to
the genetic
millions of DNA molecules
code? Select
d. Two double-stranded molecules of DNA
one:
connected at the centromere (constriction in
middle of image)
e. A single, single-stranded molecule of DNA
in the condensed state
f. Two single-stranded molecules of DNA
connected at the centromere (constriction in
middle of image)
, IB 150 EXAM 2 HOMEWORKS WITH COMPLETE ANSWERS
genes genotype phenotype
A single, double-stranded molecule of DNA in the condensed state
The bases of DNA code for the more complex amino acid sequence of
the pro- teins in cells.
, IB 150 EXAM 2 HOMEWORKS WITH COMPLETE ANSWERS
a. There is complementarity in the genetic the reading
code (A is complementary to T, and C is frame the
complementary to G). ribosome wil
b. The bases of DNA code for the more complex use.
amino acid sequence of the proteins in cells. Note:
c. The bases that make up DNA are coded by Translation
the sug- ar-phosphate backbone. always
d. The machinery involved in DNA synthesis is proceeds from
anal- ogous to the telegraph equipment 5' to 3', and
used in sending Morse code. starts at the
START codon!
4. During transcription, the DNA double-strand is
sepa- rated, and a gene is transcribed by RNA
polymerase. Transcribe the shown stretch of
the template (tran- scribed) strand of the
DNA molecule into the mRNA molecule by
writing out the appropriate RNA nu-
cleotides of the growing mRNA strand from
left to right.
Write your answer below as mRNA bases from
left to right on the shown mRNA molecule
shown above. Do not include spaces or other
symbols between the bases.
5. Consider the following mRNA
transcript: 5'-
UCUGAUGGGCUGAGUA-3'
Assuming that this is the complete mRNA
molecule, how will ribosomes translate its
sequence into a polypeptide chain? Consult the
messenger RNA codon chart to help you
translate the mRNA sequence. Be mindful of
, IB 150 EXAM 2 HOMEWORKS WITH COMPLETE ANSWERS
GUUACCGAU
methionine, glycine
