MCB Exam 2 rats UPDATED Actual Questions and CORRECT Answers
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Course
MCB
Institution
MCB
MCB Exam 2 rats UPDATED Actual
Questions and CORRECT Answers
Extensive digestion of chromatin with micrococcal nuclease was found to yield particles
called nucleosome core particles that appear as beads when viewed by electron microscopy.
Which of the following is not found in the nucleosome...
MCB Exam 2 rats UPDATED Actual
Questions and CORRECT Answers
Extensive digestion of chromatin with micrococcal nuclease was found to yield particles
called nucleosome core particles that appear as beads when viewed by electron microscopy.
Which of the following is not found in the nucleosome core particle?
a. Two molecules of H2A protein
b. Two molecules of H3 protein
c. Two molecules of H4 protein
d. One molecule of H1 protein - CORRECT ANSWER- ✔✔d. One molecule of H1 protein
The transfer of information from parent to progeny that is not based on DNA sequences is
known as
a. epigenetic inheritance.
b. non-Mendelian genetics.
c. sex-linked inheritance.
d. Mendelian genetics. - CORRECT ANSWER- ✔✔a. epigenetic inheritance.
In the chromatin around centromeres, nucleosomes are present that have a unique structure in
which the core protein _______ is replaced by _______, and this variant of the nucleosome is
required for protein assembly at the kinetochore.
During mitosis, highly condensed chromosomes consist of two sister chromatids joined at the
a. centrosome.
b. centromere.
c. kinetochore.
d. spindle fiber - CORRECT ANSWER- ✔✔b. centromere
Euchromatin consists of
a. decondensed, transcriptionally active chromatin.
b. 100-nm chromatin fibers.
c. DNA associated with nucleosomes.
d. highly condensed, transcriptionally inactive chromatin. - CORRECT ANSWER- ✔✔a.
decondensed, transcriptionally active chromatin.
The DNA of eukaryotic cells is wrapped around histones to form structures called
a. nucleoli.
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