Study

Genetics

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