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Cotton-topped tamarins are small primates with tufts of long white hair on their heads. While studying these creatures, you notice that males with longer hair get more opportunities to mate and father more offspring. To test the hypothesis that having longer hair is adaptive in these males you should.... a) test whether males with shaved heads are still able to mate b) test whether other traits in these males are also adaptive c) determine if hair length is heritable d) look for evidence...

Suppose you were leading a team looking for extraterrestrial life on distant planets. You find something that you suspect might be a living organism. Which characteristic would be a requirement in order for it to be classified as a living organism? correct answers Ability to self-replicate Evidence indicated that all life on Earth today correct answers has a single common ancestor Which structure is/are necessary in the forming of a cell? correct answers Membrane Natural selection acts ...

Pathogens correct answers Are agents that cause disease, such as bacteria, viruses, fungi, or other Immune system correct answers *Enables animals to avoid or limit many infections*; A system (including the thymus and bone marrow and lymphoid tissues) that protects the body from foreign substances and pathogenic organisms by producing the immune response Innate immunity correct answers Immunity that is present before exposure and effective from birth. Responds to a broad range of pathogens...

How does a virus make more viruses generally? correct answers 1. First a virus enters a host cell and releases its genome (either DNA or RNA) 2. Then viral genome is *replicated* by host enzymes 3. The viral genome is also *transcribed into viral mRNA which is then translated into viral proteins* through the machinery of the host cell 3. The virus is then spontaneously *self-assembled* with the replicated viral genome and viral proteins made from the viral mRNA 4. After a bunch of ...

Central Dogma of Biology correct answers DNA-transcription->RNA-translation->protein Gene expression correct answers The process by which information encoded in DNA directs the synthesis of proteins or, in some cases, RNAs that are not translated into proteins and instead function as RNAs. Proteins are the link between _________ and ________. correct answers genotype; phenotype Nutritional Mutants in Neurospora correct answers Bread mold was exposed to x-rays and mutants were crea...

When T.H. Morgan's group showed that genes are located on chromosomes, the two components of chromosomes-_____ and _____-became candidates for the genetic material. correct answers DNA; proteins How was the role of DNA in heredity discovered? correct answers By studying bacteria and the viruses that infect them Griffith's experiment Overview correct answers An experiment carried out by Griffith using the heat-killed bacteria in mice to discover that a factor in heat-killed, disease-c...

How do cells yield ATP? correct answers Cells break down glucose and other organic fuels to yield chemical energy Fermentation correct answers A process that results in the partial degradation Formula for Cellular Respiration correct answers C₆H₁₂O₆ + 6 O -> 6CO₂ + 6H₂O + ENERGY (ATP) Cellular Respiration correct answers Process that releases energy by breaking down glucose and other food molecules in the presence of oxygen. It is a more complete break down fermentation a...

Types of Membrane Transport correct answers 1. *Passive transport* of small molecules that doesn't require energy; it may involve transport proteins; with the gradient 2. *Active transport* of small molecules requires energy and a transport protein; against the gradient 3. *Bulk transport* moves large molecules; includes *exocytosis* (large molecules are secreted when a vesicle fuses with the plasma membrane) and *endocytosis* (large molecules are taken in when the plasma membrane pinch...

Metabolism correct answers catalytic reaction (run by enzymes) in cells Anabolic pathways correct answers Takes small inorganic molecules and builds larger ones Biosynthesis symbolized via photosynthesis—synthesis of ATP and NADPH and reduction (add electrons) of CO2 to CH2O Catabolic pathways correct answers Breaking down—chemical oxidation of food via cell respiration Digestion of polymers (carbs to glucose) via hydrolysis reaction > Glycolysis > KREBS cycle > Elect...

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