BMS 528- ch. 21 genes, genomes,
chromosomes Question and answers
verified to pass
Gene - a chromosomal segment that encodes for a ____ polypeptide chain or
RNA molecule or plays a regulatory function
____ - the total genetic information contained in a cell, an organism, or a virus
Chromosome - a compact strand of DNA that is encoded with ___; composed
of ____; formed during nuclear division
Chromatin - DNA complexed with ___ and other proteins; typically dispersed
throughout the nucleus during _____ - correct answer ✔single
genome
genes, chromatin
histones, interphase
PACKAGING OF BACTERIAL DNA:
Bacterial compaction of DNA occurs largely by ___ ___
The genome is organized into separate loops. Each loop is bound to a
______.
, This compact structure is called a ____
The nucleoid exists in the ___, with a few attachments to the membrane -
correct answer ✔negative supercoiling
protein
nucleoid
cytosol
Eukaryotic DNA is confined to the nucleus and wrapped around protein
assemblies called ____ - correct answer ✔HISTONES
Note that bacteria have only ___ chromosome per cell, but eukaryotic
genomes usually have ___ copies of each chromosome (with the exception of
_____ chromosomes; e.g. the X and Y chromosomes in humans)
Eukaryotic genomes contain ______ segments - correct answer ✔one, two
sex
noncoding
that eukaryotic genomes contain areas that repeat ____ times, whereas
protein coded genes are represented _____ - correct answer ✔multiple
once
chromosomes Question and answers
verified to pass
Gene - a chromosomal segment that encodes for a ____ polypeptide chain or
RNA molecule or plays a regulatory function
____ - the total genetic information contained in a cell, an organism, or a virus
Chromosome - a compact strand of DNA that is encoded with ___; composed
of ____; formed during nuclear division
Chromatin - DNA complexed with ___ and other proteins; typically dispersed
throughout the nucleus during _____ - correct answer ✔single
genome
genes, chromatin
histones, interphase
PACKAGING OF BACTERIAL DNA:
Bacterial compaction of DNA occurs largely by ___ ___
The genome is organized into separate loops. Each loop is bound to a
______.
, This compact structure is called a ____
The nucleoid exists in the ___, with a few attachments to the membrane -
correct answer ✔negative supercoiling
protein
nucleoid
cytosol
Eukaryotic DNA is confined to the nucleus and wrapped around protein
assemblies called ____ - correct answer ✔HISTONES
Note that bacteria have only ___ chromosome per cell, but eukaryotic
genomes usually have ___ copies of each chromosome (with the exception of
_____ chromosomes; e.g. the X and Y chromosomes in humans)
Eukaryotic genomes contain ______ segments - correct answer ✔one, two
sex
noncoding
that eukaryotic genomes contain areas that repeat ____ times, whereas
protein coded genes are represented _____ - correct answer ✔multiple
once
