Many animals have the p53 gene that makes a protein that regulates the cell cycle and helps prevent the formation of cancer cells. The table below shows the percentage of p53 gene sequences that the 4 species have when compared to humans. Species Percentage of p53 Gene Sequence Similar to Human Human 100 Horse 60.7 Fruit Fly 15.5 Rat 76.8 Pig 81.3 Which organism in the table is most closely related to humans based on this data? Opig horse fruit fly rat

Match each of the following properties of life with the correct descrip Movement toward or away from something Passing DNA onto offspring 100 Organisms develop according to instructions in their genetics. Mutations in genes over time can lead to greater success in an environment. Capturing energy from the sun, or eating food. 1. Reproduction 2. Response to Stimuli 3. Growth and Development 4. Energy Processing 5. Evolution

How did the different members of families of genes, such as hemoglobin,                   arise during evolution of mammals? Place you answers, from the following       possibilities, in the two bland spaces below.                           Excision events                         Unequal crossing over events                         Base-pair mutations                         Inversions                         Duplications                         Somatic changes                         Transposable DNA elements                         Deletions                         Polyploidy events                          Back mutations

Please answer 4

All the genetic variation seen in the human population, passed from generation to generation, arose from mutations that occurred in.. O Somatic (body) cells Reproductive cells (eggs and sperm)

If a species' genome is 20% cytosine, how much is adenine?   Question 1 options: If a species' genome is 20% cytosine, how much is adenine?   20%   30%   10%   50%

Although humans and nematodes (round worms) have approximately the same number of coding genes, humans exhibit greater phenotypic complexity. This illustrates the ______________________ paradox which can be partly explained by_______________________. Group of answer choices G value, differences in gene regulatory networks (e.g., # transcription factors) C-value, cell size and transposable elements G-value, cell size and transposable elements C-value, differences in gene regulatory networks (e.g., # transcription factors)

A common misconception about mutations is that they are always harmful. What is the reality of mutation effects on an organism? O Mutations can be harmful, neutral, or beneficial, and they drive genetic variation Mutations are always harmful and decrease genetic variation Mutations are always neutral and have no effect on genetic variation Mutations are always beneficial and increase genetic variation

Imagine the following: A disorder that leads to nearsightedness (difficulty seeing things at a distance) is caused by a genetic mutation. On a small island in the pacific, nearsightedness was particularly harmful to people living there because they relied on sight to interpret their surroundings. In the 1600s, a huge storm killed many of the people on this island. Before the storm, 0.1% of the people had this mutation impacting their vision. Of the 50 people who survived the storm, 2% were nearsighted. Within a few generations, 10% of the islanders were nearsighted. Which is the likely evolutionary force behind this observation? Have the student to explain the reason