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A-Level Biology
AQA
biomed unit 2.2
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Forensic Science
A-Level Biology
AQA
9th
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29 Terms
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1
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1-WHAT STAGE OF MITOSIS involves the chromatids being actively torn apart
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Anaphase
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2- What is one mark of cells that have escaped cells cycle
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>D is à and c only
Disorganized growth and weird nuclei
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3- copying of dna into single strand molecules aka mrna in the nucleus
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Transcription
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4-whta proces joins amino acids together to make an polypeptide chain
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>translation
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5- what structure allowst rnas to bind to m RNAs to make à string of amino acids
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Ribosomes
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6- what autosomal dominant begnin condition that includes cafe ole spots and lychee nodes in the eye reults in à mutation
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Neurofibromatosis
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7- meiosis results in a
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4 haploid daughter cells
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8- determine this karyotype
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Turners syndrome
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9- what mutation when one portion of chromosome is wrapped by another form of à chromosome.
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D- translocation
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10- which term describes the traits an organism has
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Phenotype
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11-principle of probqbliklity can be used to determine
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D-Determine genetic outcomes for offsprings
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12- homogenous tall GG and homogenous small Gg
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Probability of being tall is 100%
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13-
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D- all expected to be tall
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14-how can chromosomes be matched together for à karyotype
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D- all of the above
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15- results of mitosis
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À-Formation of 2 cells having 46 chromosomes identical to the OG
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16- Which clues in à microscopic observation show cancer
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B- large variably shaped nuclei
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17- what mutation is illustrated
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B- insertion
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18- what does MRI stand for
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Magnetic resonance imaging
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19- somatic cells refer to organisms that have membrane boundorganelles
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false
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20- disease caused when uncontrollable cell divide and spread into other tissues
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cancer
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21-translation occurs innthe
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Cytoplasm
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22- the stronger allele as the __ gene and the weaker allele is known as the ___ gene
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Dominant and recessive
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23- sickle cell anemia need two recessive alleles. If à person is heterozygous and has à child with à homozygous recessive
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50%
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24- which structure is labled
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A- Q arms
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25- restriction enzymes are used to cut dna at specific places
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TRUE
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26-
Deletion →
Inversion →
Duplication →
Insertion →
Translocation →
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**B C D E A**
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27- explain why mutation doesnt make amino acids
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insertion = 4 letters which means no letter bc à codon, 3 equal an amino acid and one letter left oer.
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28- non disjunction in meiosis
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non-disjunction is when this process of separation of chromatids (mitosis) and homologous chromosomes (meiosis) fails to occur.
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29- step of chromosome
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Step 1 - add cell sample
2-culture
3-arrest
4-swell and drop cells
5- stain with dye and observe
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