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Ninth Grade (Grade 9) DNA, RNA, and Genetics Questions

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Grade 9 DNA, RNA, and Genetics
What describes the synthesis of RNA with a template that has DNA?
  1. transcription
  2. translation
  3. photosynthesis
  4. respiration
Grade 9 DNA, RNA, and Genetics
Which four nitrogenous bases are typically found in DNA?
  1. guanine, cytosine, adenine, thymine
  2. guanine, uracil, adenine, cytosine
  3. none of the above
  4. both a and b
Grade 9 DNA, RNA, and Genetics
All of the following are considered to be characteristics of DNA EXCEPT
  1. deoxyribose sugar
  2. Being single-stranded
  3. Being double-stranded
  4. four nitrogenous bases
Grade 9 DNA, RNA, and Genetics
Which kind of sugar is encountered in the nucleotides of DNA?
  1. deoxyribose
  2. ribose
  3. glucose
  4. none of the above
Grade 9 DNA, RNA, and Genetics
Which nitrogenous base is only found in RNA?
  1. uracil
  2. thymine
  3. guanine
  4. cytosine
Grade 9 DNA, RNA, and Genetics
Grade 9 DNA, RNA, and Genetics
Grade 9 DNA, RNA, and Genetics
Which of the following are primary sources of genetic variation?
  1. immigration and allele frequencies
  2. genetic shuffling and immigration
  3. mutations and immigration
  4. mutations and genetic shuffling
Grade 9 DNA, RNA, and Genetics
Grade 9 DNA, RNA, and Genetics
In eukaryotic cells, which of the following is true about DNA?
  1. It is located in the nucleus
  2. It floats freely in the cytoplasm
  3. It is located in the ribosomes
  4. It is circular
Grade 9 DNA, RNA, and Genetics
When did Mendel conduct his investigations in genetics?
  1. After scientists had complete knowledge of DNA and chromosomes
  2. Before DNA was discovered
  3. At the same time that Watson and Crick were working on their model
Grade 9 DNA, RNA, and Genetics
Mutations can be
  1. Neutral
  2. Beneficial
  3. Harmful
  4. All of the above
Grade 9 DNA, RNA, and Genetics
Grade 9 DNA, RNA, and Genetics
DNA replication produces two DNA molecules,
  1. each with two new strands
  2. one with two new strands and the other with two original strands
  3. each with one new strand and one original strand
  4. each with two original strands
Grade 9 DNA, RNA, and Genetics
According to Mendel, what does an organism receive for each inherited characteristic?
  1. A single gene in which one half of the genetic material is contributed by each parent
  2. Two alleles, one contributed by the father and the other contributed by the mother
  3. A pair of chromosomes, one from the father and one from the mother
  4. 46 chromosomes, 23 from the father and 23 from the mother
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