What is a chromosome best described as?
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.
What is the chromosome structure of a eukaryotic cell?
In prokaryotes, the circular chromosome is contained in the cytoplasm in an area called the nucleoid. In contrast, in eukaryotes, all of the cell’s chromosomes are stored inside a structure called the nucleus. Each eukaryotic chromosome is composed of DNA coiled and condensed around nuclear proteins called histones.
What is true about eukaryotic chromosomes?
Eukaryotic chromosomes consist of DNA tightly wound around clusters of histone proteins. Chromatin consists of all the DNA in the nucleus, as well as its associated proteins. … The double helix shaped DNA molecule that makes up each chromosome is first coiled around clusters of histone proteins.
What are eukaryotic chromosomes made of quizlet?
Eukaryotic chromosomes are composed of chromatin, a complex of DNA and associated proteins. In fact, most eukaryotic chromosomes are about 60% protein and 40% DNA.
Are eukaryotic chromosomes double stranded?
Each chromosome contains a single double-stranded piece of DNA along with the aforementioned packaging proteins. … Eukaryotes typically possess multiple pairs of linear chromosomes, all of which are contained in the cellular nucleus, and these chromosomes have characteristic and changeable forms.
Which modifications are typically found on eukaryotic Mrnas quizlet?
The modification of the 5′-ends of eukaryotic mRNA is called capping. The cap is composed of a methylated GTP that is linked to the rest of the mRNA by a reverse 5′ to 5′ triphosphate bridge. The capping of the mRNA occurs in the nucleus and typically occurs prior to the completion of transcription of the mRNA.
Why are eukaryotic chromosomes linear?
In most eukaryotic cells, DNA is arranged in multiple linear chromosomes. … This is a phenomenon which occurs due to the directionality of DNA replication enzymes, resulting in the gradual loss of genetic material at the ends of linear chromosomes after each subsequent cycle of cell and DNA replication.
Which of the following statements best describes eukaryotic chromosomes compared to prokaryotic chromosomes?
Which of the following statements best describes eukaryote chromosomes compared to prokaryote chromosomes? Eukaryotes generally have multiple linear chromosomes, while prokaryotes have a single-stranded circular chromosome.