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MCDB 101B MIDTERM EXAM |GUARANTEED ACCURATE ANSWERS $11.49   Add to cart

Exam (elaborations)

MCDB 101B MIDTERM EXAM |GUARANTEED ACCURATE ANSWERS

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  • Course
  • MCDB 101B
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  • MCDB 101B

Function of histone proteins in DNA - ACCURATE ANSWERS help package DNA into chromatin Function of nonhistone proteins in DNA - ACCURATE ANSWERS structure, replication, segregation, and gene expression What charge is histone - ACCURATE ANSWERS positive, basic What 4 types of histones form ...

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  • November 2, 2024
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  • 2024/2025
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  • mcdb 101b midterm
  • MCDB 101B
  • MCDB 101B
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EXAMLINKS
MCDB 101B MIDTERM EXAM |
GUARANTEED ACCURATE
ANSWERS

Function of histone proteins in DNA - ACCURATE ANSWERS✔✔
help package DNA into chromatin


Function of nonhistone proteins in DNA - ACCURATE ANSWERS✔✔
structure, replication, segregation, and gene expression


What charge is histone - ACCURATE ANSWERS✔✔ positive, basic


What 4 types of histones form the nucleosome - ACCURATE
ANSWERS✔✔ H2A, H2B, H3, and H4


What are 2 types of nonhistone proteins - ACCURATE ANSWERS✔✔
1. Scaffold
2. Kinetochore (CENP-E)


What is the function of the scaffold protein - ACCURATE
ANSWERS✔✔ structural backbone


What is the function of the CENP-E protein - ACCURATE
ANSWERS✔✔ to power chromosome moments along the spindle
during cell division

, What do CENP-E proteins do during anaphase - ACCURATE
ANSWERS✔✔ move separated sister chromatids toward the spindle
poles


What is the fundamental unit of chromosomal packaging - ACCURATE
ANSWERS✔✔ nucleosomes


What does the linker DNA do? How many bp form the linker DNA -
ACCURATE ANSWERS✔✔ connects one nucleosome to the next; 40
bp


What are 2 models that explain the different levels of compaction in
DNA - ACCURATE ANSWERS✔✔ 1. Nucleosome supercoiling
2. Radial loop-scaffold model


What is the short arm of a chromosome? Whats the long one? -
ACCURATE ANSWERS✔✔ p (petite) is short
Q (queue) is long


What does fluorescent in Situ Hybridization (FISH) do? - ACCURATE
ANSWERS✔✔ helps geneticists characterize genomes


Whats the difference between heterochromatin and euchromatin? -
ACCURATE ANSWERS✔✔ heterochromatin=darker bands due to
tighter packing at these regions

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