YOUR NOTES UNIT 2 NOTES DNA (deoxyribonucleic acid) DNA Functions • Stores genetic information and copies itself (replication) to pass on the information • Contains genes (instructions to make proteins) • Instructs cell’s activities DNA Structure • DNA is a polymer of nucleotides • Chromosomes (DNA strand + associated proteins ie. Histones wrap DNA around like a spool = condensed chromatin) ↓ genes (sections of a chromosome that codes for a protein) ↓ nucleotides (3 parts:
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differences in gender performance among male and females and age on the Stroop interference effect. Experimental psychology students of eight respondents‚ 3 males and 5 females‚ completed the task in which they participated in a Stroop Colour-Word Test. The condition is the ability to recognize the colours‚ the performance difference between male and female‚ the performance difference between age‚ the reaction time and the effect of colour word interference in order for the participants to speak out
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staircase. DNA Replication: Replication is an essential function of DNA. It must be able to replicate itself accurately so that as a cell divides‚ it will be able to pass its hereditary information and its genetic code to its daughter cells. Replication precisely copies DNA so that new molecules contain the same exact sequence of bases as the original strands. DNA replication occurs in the nucleus. It takes place during the S phase of interphase as DNA. The Steps of Replication: 1) First‚ helicase
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1. How DNA replication takes place? DNA replication occurs within the interphase‚ In this phase two strands of DNA serve as templates for new DNA strands that are forming. As the DNA separates a replication bubble is formed‚ this is where two replication forks are formed that grow in two directions. DNA polymerase creates new strands as nucleotides are added individually to each strand. As each nucleotide pairs itself to the complimentary nucleotide on the opposite strand‚ new DNA molecules are formed
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Exercise 13 MITOSIS: REPLICATION OF EUKARYOTIC CELLS ANSWERS TO QUESTIONS 1. a. Mitosis and cytokinesis are often referred to collectively as "cellular division." Why are they more accurately called cellular replication? The result of mitosis is production of two cells (replicates) identical to the parent cell. The genetic material is replicated rather than divided. b. Does the cell cycle have a beginning and an end? The organization of our study of cellular events indicates a beginning and
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Biochemical Prospective of DNA polymerase in Replication Biologists and chemists have long recognized a relationship among DNA‚ RNA‚ and protein‚ and this recognition has guided a vast amount of research over the past decades and generations. The pathway of DNA to RNA and RNA to protein is conserved in all forms of life and is often called the Central Dogma. DNA functions as a storage molecule‚ holding genetic information for the lifetime of a cellular organism‚ and allowing that information
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After distributing the Stroop Task‚ the following results were discovered: the mean for the musicians was 1178.7070 milliseconds and the total mean for the athletes was 1235.188 milliseconds. Our results was the following‚ t(18)=0.587; p=0.567. The results as demonstrated can clearly state that there was not a significance within the .05 alpha level. Therefore‚ the null hypothesis had to be retained. Our conclusion of the Stroop Task was that the musicians did not show a faster (lower) time in comparison
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It is essential to validate the utility of the Stroop task as a measure of cognitive depletion and executive attentional impairment in the novel domain of airport security interrogation settings. The current measure was initially adapted from a version developed to gauge deficits in attention by utilising colour names printed in black‚ colour names different to the printed ink and coloured squares (Stroop‚ 1935 and Macleod‚ 1991). Adapted versions based on different possible manipulations of the
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The Stroop effect and attention: Effect of automatic and controlled processing on the performance of a colour identification task. Abstract The present experiment aimed to carry out a modification of the experiment on automatic processes carried out by Stroop and to discover whether automatic processing could intrude on a colour identification task. Stoop’s original research found that the response time reading the colour of the ink of the words describing different colour was greater than
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The Stroop Effect: Automatic and controlled processes and the time taken to identify colours and words Abstract The aim of the experiment was test whether automatic processing could affect a colour related task. Previous research has found that the response time of reading the colour of the ink of colour associated words was greater than reading the colour of the ink of neutral words. The experiment retested the Stroop effect to measure the incursion of automatic processing. The results showed
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