Which of the following is a reason that the low error rate of DNA replication is important to evolution? Replication with a high error rate is likely to kill the cell. Fixing replication errors provides a cellular role for mismatch repair enzymes. Rare errors are the source of variation. Most mutations have no effect on phenotype.

Evolution happens over time through mutations at the chromosomal and nucleotide levels. Mutations can be beneficial, neutral, or harmful. Most mutations are neutral. Describe 6 different types of mutations that can occur at the chromosomal and nucleotide levels. Make sure to include 3 types of each.

All life shares DNA as the hereditary material. From an evolutionary perspective, why do you think this is the case?

Which of the following statements about mutations are true? * Mutations are always passed down to future generations. Mutations decrease the genetic diversity of organisms. Mutations occur only in somatic cells since they are diploid. Mutations are changes in the phosphate backbone of DNA which always have harmful effects. Mutations always cause a frameshift. Mutations can be harmful, neutral, or beneficial to the organism. Mutations are changes in the nucleotide sequence of a DNA molecule. Mutations may cause a change in the protein sequence resulting from the genetic code for that gene. Page 2 of 10 Back Next Never submit passwords through Google Forms, This form was created inside of Gwinnett County Public Schools Report Abuse

Which of the following is NOT true about DNA?     It is the way that life continues as a genetic connection between generations.     It houses Information in DNA which is the source of form and function.     It determines all of the traits and characteristics that an organism will have.     It's primary function is passed from parent to offspring.

Our DNA is subject to mutations on a daily basis. Why do most mutations that occur in the genome of organisms escape detection and not elicit a deleterious effect? Why does the child of someone with cancer not necessarily develop cancer? Is it reasonable to state that mutations are essential to the evolutionary process?

The green sea slug carries the genes for synthesizing chlorophyll (apparently acquired from the chloroplasts of green algae), illustrating which type of genetic change leading to evolution? horizontal gene transfer gene deletion gene duplication mutation exon shuffling

Which of the following statements accurately describes genetic mutations? *       Mutations are a natural process that increases genetic diversity.       Mutations are an unnatural process that always affect the phenotype.       Mutations are an unnatural process that are always harmful.       Mutations are a natural process that only effects genotype, not phenotype.

Spirochaetes are free-living, anaerobic bacteria that contain spiral-shaped cells. Nematodes are roundworms that are incredibly diverse and, as a group, have adapted to survive in all environments. Which of the following statements accurately describes the DNA of both groups? * The spirochaete genome is smaller than the nematode genome. Nematode DNA is circular. Spirochaete chromosomes are composed of just DNA while nematode chromosomes also include specialized proteins. O Spirochaete DNA is linear.

What would happen to a single-celled life form if the information handed down to offspring was always copied perfectly? (Select all that apply.) The life form's only mechanism for evolution would be chemical evolution. Nothing unusual would happen; this happens regularly with life forms. The life form would be identical to the one from the previous generation, like a clone. There would be no mutations. X