Cell Review, Gene, and Chromosome Flashcards
Pro or Eu
Unicellular
Pro
Pro or Eu
Multicellular
Eu
Pro or Eu
No true nucleus
Pro
Pro or Eu
Presence of Nucleus
Eu
Pro or Eu
One circular DNA
Pro
Pro or Eu
Linear DNA
Eu
Pro or Eu
Absence of Organelles
Pro
Pro or Eu
Presence of Organelles
Eu
Pro or Eu
DNA is short and circular
Pro
Pro or Eu
DNA is longer and is contained in chromosomes
Eu
Tightly packed DNA
Chromosomes
Unwound DNA
Chromatin
2 types of Chromatin
Heterochromatin
Euchromatin
Type of chromatin
the firmly packed
form which is what we see in chromosomes that is the thick and condensed part of the chromosome which is typically inactive.
Heterochromatin
Type of chromatin
Are the genetically active uncoiled loosely packed form of the chromatin. Not usually seen in the light microscope.
Eucharomatin
a phenomenon in which the level of expression of many genes on the sex chromosomes, the x chromosome or the y chromosome is similar in both sexes even though males and females have a different complement of sex chromosomes
Dosage Compensation
Holds the chromatids together
Centromeres
If centromere is in the middle, and the
arms are about of equal length
Metacentric
If the centromere is between the midpoint and one end
Submetacentric
If chromatid is near one end
Acrocentric
If chromatid is placed at the end
Telocentric
Metacentric Chromosomes
1, 3, 16, 19, 20
Submetacentric chromosomes
2, 4-12, 17, 18, X
Acrocentric chromosomes
13, 14, 15, 21, 22, Y
