Biology

2. Use a Punnet square to determine the possible outcome for the following crosses. State the genotypic ratio and phenotypic ratio for the offspring. A. BBtimes bb B. Bbtimes Bb C. Bbtimes bb

Exocytosis and Endocytosis is accomplished by the __ plasma membrane endoplasmic reticulum mitochondria nucleus

Over a lifetime, the brain shrinks by about __ percent. 1 5 10 20 40

How does the Miller-Urey experiment fall short of demonstrating that life can arise from inorganic molecules? A) It recreates the conditions that existed at the earth's beginning, but no molecules form as a result. B) It doesn't provide evidence of the formation of amino acids. C) It doesn't show how multicellular organisms developed from unicellular organisms. D) It doesn't show a leap between a collection of amino acids and a single- celled organism.

Multiple Cholce Question You evaluate a bile esculin agar slant 24 hours after you inoculated it with your unknown bacterium. Is the bacterium positive or negative for esculin hydrolysis? Positive Negative

Which of the following types of agents targets protein conformation? Multiple Choice Alcohol Crystal violet Ultraviolet light Hydrogen peroxide

Large predators and omnivores, such as mountain lions and bears, roam these mountain ranges. Which of the following statements is TRUE? Because of habitat fragmentation the individual populations of these Sky Islands have less genetic diversity than they did in the past. Because of extirpation, many of these individual populations have more biodiversity than they did in the past. Because of habitat fragmentation the individual populations of these Sky Islands have more biodiversity than they did in the past. Because of immigration and emigration, the individual populations of these Sky Islands have less biodiversity than they did in the past.

The fact that DNA sequences are more similar in more closely related organisms is evidence of what? natural selection mutation adaptation evolution

Which part of the brain plays a role in processing procedural memories, such as how to play the piano and classical conditioning. Think about the study with the rabbits and how when they removed this part of the brain, the rabbits were not able to learn the conditioned I task. Amygdala Hippocampus Cerebellum Prefrontal cortex

Multiple Choice 1 point Scientists can distinguish between DNA of different individuals thus making this information useful in criminal investigations The technique used is called restriction fragment length polymorphisms. societal polymorphisms. hybridization polymorphisms. Southern Blot. molecular hybridization.