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Questions in biology

[Answered] Huntington's Chorea is a disease that is caused by a dominant allele. What is the % chance of a child having this disease if both parents have the disease and are heterozygous? A. 25% B. 50% C. 100% D. 75%

[Answered] What is the result of the contraction of the arrector pili muscles? A. Sweating B. Nail growth C. Goosebumps D. Tanning

[Answered] The global average height for women is 5'4" and men is 5'9". 14.5% of American men are at least 6 feet tall, 1% of American women reach 6 feet. Which factors help to explain this? A. Girls start puberty at a younger age so have fewer years with GH and IGF B. Estrogen causes slow growth while testosterone causes rapid growth C. Estrogen stimulates the epiphyseal plate to close rapidly while testosterone stimulates it to close slowly D. Testosterone stimulates osteoblasts to work faster

[Answered] The \u0394G of ATP hydrolysis in a test tube under standard conditions is -7.3 kcal/mol. The \u0394G for the reaction A+B \u2192 C under the same conditions is +4.0 kcal/mol. How would the addition of an enzyme that catalyzes A+B \u2192 C most likely alter the coupled reactions? A. It would increase the rate of production of C and increase the overall \u0394G for the coupled reactions B. It would result in no change in the rate of production of C and decrease the overall \u0394G for the coupled reactions C. It would increase the rate of production of C and decrease the overall \u0394G for the coupled reactions D. It would result in no change in the overall \u0394G for the coupled reactions

[Answered] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Answered] What does the term motile mean? Multiple Choice A. magnification B. movable C. solid D. fixed

[Answered] When comparing salmonellosis and shigellosis, based on the relative infectious doses of the pathogens involved, ______. Multiple choice question. A. fewer Salmonella cells are required to cause a salmonellosis infection B. both diseases are equal in terms of their ability to be spread through a population C. salmonellosis does not spread as easily through a population D. more Shigella cells are required to cause a shigellosis infection E. shigellosis does not spread as easily through a population

[Answered] Are recipes for making proteins?

[Answered] Which one of the following would most easily pass through a cell membrane? A. Carbon dioxide molecule B. Large glycoprotein C. Chloride ion D. Hydrogen ion

[Answered] _____ is defined as the cell's nucleus making an exact copy of all the chromosomes and splitting into two new cells. A. Meiosis B. Homozygous C. Heterozygous D. Phenotype E. Genes F. Genotype G. Mitosis