Coll Bio
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| replication beings at | the origin of replication
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| Y shaped region where parental strands of DNA are being unwound | replication fork
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| enzymes that untwist double helix of DNA | helicases
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| bind to unpaired DNA strands, keeping them from repairing | single strand binding proteins
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| relieves stress of winding and keeps DNA straightened out | topoisomerase
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| Role of DNA primase | adds RNA primer to parental strand
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| Role of RNA polymerase | adds nucleotides to preexisting chain 5 to 3
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| leading strand | continuous adding of nucleotides by DNA polymerase
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| lagging strand | nucleotides added in okazaki fragments
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| mismatch repair | enzymes remove incorrectly paired nucleotides
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| nuclease | DNA cutting enzyme that removes incorrectly paired nucleotides
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| DNA ligase | joins together DNA strands
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| telomeres | repetition of one short nucleotide sequence. code for nothing
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| oncogene | genes that encode for proteins that lead to cell growth
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| tumor suppressor | genes which encode for proteins that halts cell growth
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| law of segregation | two alleles for the same heritable trait separate from each other during gamete formation and end up in different gametes.
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| homozygous | has a pair of identical alleles for a trait
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| heterozygous | has a pair of 2 different alleles for a trait
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| monohybrid | heterozygous for a trait used in a cross (Yy)
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| dihybrid | heterozygous for two traits used in a cross (YyRr)
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| law of independent assortment | each pair of alleles segregates independently of the other allele pairs
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| complete dominance | dominant trait masks presence of other trait
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| incomplete dominace | neither gene is completely dominant. offspring have a mix of the two traits
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| codominance | both alleles are present
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Created by:
Basically_Jess
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