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DNA, RNA, and Genetics Questions - All Grades

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Grade 8 DNA, RNA, and Genetics
What refers to the location where genes are typically found?
  1. chromosomes
  2. proteins
  3. alleles
  4. sex cells
Grade 7 DNA, RNA, and Genetics
An abnormal condition that a person inherits through genes or chromosomes is a
  1. pedigree.
  2. gene therapy.
  3. genetic disorder.
  4. karyotype.
Grade 7 DNA, RNA, and Genetics
What would the complementary DNA strand be for the DNA sequence AGT-CGA-CCG-AAT?
  1. ATC-GCT-TTA-GCG
  2. TCA-GCT-GGC-TTA
  3. GGG-CGC-TTA-TAG
  4. TAG-TAC-GAG-TTC
Grade 8 DNA, RNA, and Genetics
Which definition describes a mutation?
  1. a change in the nucleotide base sequence of a DNA molecule
  2. a molecule that is present in all living cells and plays a role in protein production
  3. a subunit of a nucleic acid chain that consists of a sugar, a phosphate, and a base
  4. a molecule that is present in all living things and stores the information that determines inherited traits
Grade 7 DNA, RNA, and Genetics
Punnett squares show the possible                       of offspring.
  1. genotypes
  2. number of chromosomes
  3. DNA sequence
  4. letters of a sequence
Grade 11 DNA, RNA, and Genetics
The passing of traits from parent to offspring is
  1. genetics.
  2. heredity.
  3. traits.
  4. Punnett squares.
Grade 9 DNA, RNA, and Genetics
Two alternative forms of a gene are called                .
  1. alleles
  2. characteristics
  3. genomes
  4. traits
Grade 8 DNA, RNA, and Genetics
Which situation is an example of genetic variation?
  1. Two children have different eye colors.
  2. One person is older than another.
  3. One person has a scar, but her friend does not.
Grade 7 DNA, RNA, and Genetics
Which set of genotypes are homozygous dominant?
  1. AA, aa, Aa
  2. Aa, Cc, CC
  3. BB, AA, RR
Grade 5 DNA, RNA, and Genetics
DNA is                  -stranded.
  1. double
  2. single
  3. triple
  4. none of the above
Grade 8 DNA, RNA, and Genetics
A Punnett square is used to show
  1. all the possible combinations of hair colors.
  2. all possible shoe sizes.
  3. DNA type.
  4. all the possible combinations of alleles that can result from a genetic cross.
Grade 7 DNA, RNA, and Genetics
The number of chromosomes in a cell produced by mitosis is
  1. half as many as the original cell.
  2. twice as many as the original cell.
  3. the same number as the original cell.
  4. random, depending on factors present.
Grade 7 DNA, RNA, and Genetics
Each rung of the DNA ladder is made of
  1. a pair of nitrogen bases.
  2. a single nitrogen base.
  3. three nitrogen bases.
  4. four nitrogen bases.
Grade 6 DNA, RNA, and Genetics
Which term means a change in a gene or chromosome?
  1. RNA
  2. allele
  3. Punnett square
  4. mutation
Grade 12 DNA, RNA, and Genetics
Which base is present in DNA but not RNA?
  1. cytosine
  2. uracil
  3. guanine
  4. thymine
  5. adenine
Grade 5 DNA, RNA, and Genetics
Which is an inherited trait?
  1. eye color
  2. skin color
  3. fetching
  4. a and b
Grade 6 DNA, RNA, and Genetics
What type of reproduction requires male and female sex cells?
  1. heredity
  2. mitosis
  3. sexual reproduction
  4. asexual reproduction
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