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Eighth Grade (Grade 8) DNA, RNA, and Genetics Questions

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Grade 8 DNA, RNA, and Genetics
The composition of an organism on the genetic level is its
  1. genotype
  2. phenotype
  3. adaptations
  4. evolution
Grade 8 DNA, RNA, and Genetics
Grade 8 DNA, RNA, and Genetics
Grade 8 DNA, RNA, and Genetics
Grade 8 DNA, RNA, and Genetics
Grade 8 DNA, RNA, and Genetics
The science of heredity is called                  .
  1. genetics
  2. extinction
  3. evolution
  4. natural selection
Grade 8 DNA, RNA, and Genetics
Passing traits from parents to offspring is called
  1. genetics
  2. heredity
  3. evolution
  4. gene
Grade 8 DNA, RNA, and Genetics
Which of the following statements of homologous chromosomes is considered to be false?
  1. They are exactly identical.
  2. They can be found in pairs.
  3. They can have genes coding for the same traits.
  4. They can have genes that are encountered in the same order.
Grade 8 DNA, RNA, and Genetics
Which process will result in the production of sex cells?
  1. mitosis
  2. photosynthesis
  3. meiosis
  4. probability
Grade 8 DNA, RNA, and Genetics
Which of the following terms correctly describes transferring a portion of DNA between organisms?
  1. selective breeding
  2. natural selection
  3. internal fertilization
  4. genetic engineering
Grade 8 DNA, RNA, and Genetics
What is a Punnett square used to do?
  1. to show all the possible combinations of hair colors
  2. to show all possible shoe sizes
  3. to show DNA type
  4. to show all the possible combinations of alleles that can result from a genetic cross
Grade 8 DNA, RNA, and Genetics
Which of the following correctly defines a pedigree?
  1. A family tree
  2. A chart organizing genetic conditions passed down in a family
  3. A chart showing the family's DNA strains
  4. A flow chart
Grade 8 DNA, RNA, and Genetics
Grade 8 DNA, RNA, and Genetics
What is a phenotype?
  1. an organism's genetic makeup or allele combination
  2. an organism's physical appearance or visible traits
Grade 8 DNA, RNA, and Genetics
Passing traits on from parents to offspring is known as
  1. probability
  2. heredity
  3. recessive
  4. meiosis
Grade 8 DNA, RNA, and Genetics
Grade 8 DNA, RNA, and Genetics
In order to a female child to be born there must be
  1. an X and Y chromosome
  2. two X chromosomes
  3. two Y chromosomes
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