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Genetics
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Can mistakes happen during the replication of genes?
yes
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If man is heterozygous for a recessive trait and mom is homozygous dominant will recessive gene be passed?
0%
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A man is heterozygous for cystic fibrosis and a woman is homozygous dominant. What are the chances their children will have cystic fibrosis?
0%
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How much DNA in chromosomes of humans does not form genes and is junk DNA?
97%
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How many pea plants did Mendel test?
hundreds
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In a Punnett Square, what does the capital letter represent?
the dominant allele
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What do the letters on a Punnett Square represent?
alleles
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What is part of DNA that codes for a trait on a chromosome.
gene
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If you are looking at 4 tall pea plants, what is the possible genotype?
TT, or Tt
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What is self-pollination?
when pollen falls on the same plant
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What helps produce proteins?
RNA
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If genotypes of offspring are Oo, Oo, oo, oo, what's the ratio if orange is dominant to purple?
2/4 or 50%
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What are the 3 nitrogen bases on mRNA that code for 1 amino acid?
codon
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Recessive traits are shown when a trait is recessive homozygous.
true
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Did Mendel test and record pea plants for length of the leaf?
no
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Can exposure to radiation cause a mutation?
yes
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What is the process of making a protein from RNA?
translation
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What is an example that represents a homozygous recessive genotype?
rr
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Recessive traits are observed when how many recessive factors are present?
2
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What is a type of mutation?
insertion, deletion, or substitution
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How many factors did Mendel say each parent contributes for each trait?
1
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What is the process of making mRNA from DNA?
transcription
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Genetics is the study of ____?
heredity
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What is a form of RNA?
messenger, transfer, or ribosomal
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If you are looking at 4 tall pea plants, what is the phenotype?
tall
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