Eukaryotic chromosomes are packaged into the nucleus using histones. Histones are a family of proteins that help to organize and condense DNA into a compact structure called chromatin.
Eukaryotic chromosomes tend to be much larger than prokaryotic chromosomes. In order to package these large chromosomes into the nucleus, which family of proteins are used by the cell?(1 point)
Responses
histones
histones
RNA polymerases
RNA polymerases
DNA polymerases
DNA polymerases
transcription factors
7 answers
Which of the following choices correctly compares prokaryotic and eukaryotic chromosomes?(1 point)
Responses
Prokaryotic chromosomes are wrapped into structures called nucleosomes.
Prokaryotic chromosomes are wrapped into structures called nucleosomes.
Prokaryotes tend to only have one chromosome while eukaryotes have many.
Prokaryotes tend to only have one chromosome while eukaryotes have many.
Prokaryotic chromosomes are typically much larger than eukaryotic ones.
Prokaryotic chromosomes are typically much larger than eukaryotic ones.
Prokaryotic chromosomes are linear while eukaryotic chromosomes are circular.
Responses
Prokaryotic chromosomes are wrapped into structures called nucleosomes.
Prokaryotic chromosomes are wrapped into structures called nucleosomes.
Prokaryotes tend to only have one chromosome while eukaryotes have many.
Prokaryotes tend to only have one chromosome while eukaryotes have many.
Prokaryotic chromosomes are typically much larger than eukaryotic ones.
Prokaryotic chromosomes are typically much larger than eukaryotic ones.
Prokaryotic chromosomes are linear while eukaryotic chromosomes are circular.
The correct comparison is:
Prokaryotes tend to only have one chromosome while eukaryotes have many.
Prokaryotic organisms, such as bacteria, typically have a single circular chromosome, while eukaryotic organisms have multiple linear chromosomes. The other statements are incorrect in their comparisons.
Which answer choice below correctly describes the structure of DNA?(1 point)
Responses
Sugar-phosphate backbone with nitrogen bases coming off a single helix.
Sugar-phosphate backbone with nitrogen bases coming off a single helix.
A sugar-phosphate backbone with nitrogen bases in the middle forming a double helix.
A sugar-phosphate backbone with nitrogen bases in the middle forming a double helix.
Sugar-nitrogen base backbone with phosphates in the middle forming a double helix.
Sugar-nitrogen base backbone with phosphates in the middle forming a double helix.
Nitrogen bases on the outside with sugar-phosphate in the middle of a double helix.
Responses
Sugar-phosphate backbone with nitrogen bases coming off a single helix.
Sugar-phosphate backbone with nitrogen bases coming off a single helix.
A sugar-phosphate backbone with nitrogen bases in the middle forming a double helix.
A sugar-phosphate backbone with nitrogen bases in the middle forming a double helix.
Sugar-nitrogen base backbone with phosphates in the middle forming a double helix.
Sugar-nitrogen base backbone with phosphates in the middle forming a double helix.
Nitrogen bases on the outside with sugar-phosphate in the middle of a double helix.
The correct description of the structure of DNA is:
A sugar-phosphate backbone with nitrogen bases in the middle forming a double helix.
In DNA, the sugar-phosphate backbone forms the sides of the double helix, while the nitrogenous bases pair in the center, held together by hydrogen bonds.
Chromosomes in eukaryotes are made of DNA wrapped around proteins. What is the combination of DNA and protein called?(1 point)
Responses
alleles
alleles
nucleosomes
nucleosomes
histones
histones
genes
Responses
alleles
alleles
nucleosomes
nucleosomes
histones
histones
genes
The combination of DNA and protein in eukaryotic chromosomes is called nucleosomes. Nucleosomes are the basic structural units of chromatin, consisting of a segment of DNA wound around a core of histone proteins.