Wednesday, October 28, 2009

Please help me?

ten points to best answer



I need a good grade!



thanks!:)



1: Adrenaline increases heart rate, blood pressure, and blood supply to skeletal muscles, increases the conversion of glycogen to glucose and stimulates the rate of metabolism.



True



False



not enough information



2: Gonads are the overies in females the the testes in males.



True



False



Not enough Info



3: Two glands are located on the top of each kidney



True



False



Not enough information



4: The sensory receptor is the first element in the sensory pathway.



True



False



Not enough info



5: Sensory information is used for three main functions: sensation, control of movement, and arousal.



True



False



Not enough info



6: The nerve fiber is composed of an axon, a neurite and often its covering.



True



False



Not enough info



7: The nervous system is divided into the central nervous system and the peripheral nervous system.



True



False



Not enough info



8: Myelin is not a part of the surface membrane of the Schwann cell that has been wrapped around the axon



True



False



Not enough info



9: DNA is a long fiber, like a hair, only thinner and longer. It is made from two strands that stick together with a slight twist.



True



False



Not enough info



10: Genes carry the instructions for making all the thousands of proteins that are found in a cell.



True



False



Not enough info



11: A chromosome has no DNA and the proteins attached to it. There are 44 pairs of chromosomes in a human cell.



True



False



Not enough info



12: Electrophoresis is a technique used in the laboratory that results in the separation of charged molecules



True



False



Not enough info



13: DNA is found in the nucleus of all eukaryotic cells.



True



False



Not enough info



14: A dihybrid cross is an experimental cross between individuals that have hybrid genes for the same traits. (one dominant and one recessive gene)



True



False



Not enough info



15: During the early 1900s the link between Mendel%26#039;s work and that of cell biologists resulted in the chromosomal theory of inheritance.



True



False



Not enough info



16: A breakthrough in the quest to determine the hereditary material came from the work of Max Delbruck and Salvador Luria in the 1940s



True



False



Not enough info



17: Bacteriophages function by injecting DNA into the host cell



True



False



Not enough information



18: DNA polymerase plays no role in the processes of life



True



False



not enough information



19: DNA replication and combination is not a necessary part of the reproductive process.



True



False



not enough information



20: In nature, most organisms copy their DNA in the same way



True



False



not enough information



Please help me?

1 true, adrenaline is a steriod



2 true, both start as the same cells in the fetus



3 true, adrenal glads



4 true, receptors start signals through the neurons



5 false, sensory, movement and internal homeostasis



6 false, neuron + shwann cells



7 true



8 false, it is a part



9 true, it%26#039;s a very long double helix



10 true, DNA-%26gt;genes-%26gt;RNA-%26gt;protein



11 false, a chromosome is a string of DNA wrapped around histones (DNA proteins)



12 true, electricity separates charged elements in a gel



13 true



14 true, look up Mendelian Genetics



15 true, look up Mendelian Genetics



16 who and who?



17 false, it can be RNA too



18 false, DNA polymerase makes DNA



19 false, no new DNA means no new cells



20 true, see 18



Please help me?

1) I believe.. True



2) True



3) True



4) True



5) True



6) True



7) True



8)? Sorry :(



9) Cant answer that..... hair is relative



10) True



11) FALSE



12) Dunno



13) True



14)



Please help me?

ummm huh? sorry Im not good with school



Please help me?

Idk sorry.



Please help me?

1.True...it%26#039;s true



2.true



3.true



4.true



5.true



6.true



7.true



8.False



9.False



10.True



11.False

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