Cell Biology Chapter 5 True or False

All functional DNA sequences inside a cell code for protein products.

False.

Comparing the relative number of chromosome pairs is a good way to determine whether two species are closely related.

False.

DNA molecules, like proteins, consist of a single, long polymeric chain that is assembled from small monomeric subunits.

False.

Gene expression is the process of duplicating genes during DNA replication.

False.

Gene sequences correspond exactly to the respective protein sequences produced from them.

False.

Histone proteins have a lower-than-average number of lysines and arginines in their polypeptide chains

False.

Hydrogen bonds between each nucleotide hold individual DNA strands together.

False.

Interphase chromosomes represent a physical state of the chromatin with the highest order of packaging

False.

The histone proteins that constitute the core nucleosome include tetramers of histones H2A, H2B, H3, and H4.

False.

The telomere is a specialized DNA sequence where microtubules from the mitotic spindle attach to the chromosome so that duplicate copies move to opposite ends of the dividing cell.

False.

There are five different nucleotides that become incorporated into a DNA strand.

False.

Linker histones help compact genomic DNA by influencing the path of the DNA after it has wrapped about the nucleosome core.

True

Chromosomes exist at different levels of condensation, depending on the stage of the cell cycle.

True.

Each strand of DNA contains all the information needed to create a new double stranded DNA molecule with the same sequence information.

True.

Eukaryotic chromosomes contain many different sites where DNA replication can be initiated.

True.

The polarity of a DNA strand results from the polarity of the nucleotide subunits.

True.