CTAGTT base sequence on DNA forms a GAUCAA base sequence with mRNA. GAUCAA base sequence on the mRNA is enough to allow tRNA to deliver 3 amino acids. Mutations occur when the base sequences are copied from DNA incorrectly. Meiosis and mitosis are both involved with the process of cellular division. The end product of meiosis and mitosis is the same. Normal body cells usually have paired chromosome strands Diploid cells have only one half of the total genetic material. Sperm cells are haploid because they have no paired chromosome strands. Haploid cells are produced by mitosis. During interphase normal body cells duplicate their genetic material. __ During meiosis the cell divides twice and the chromosomes duplicate twice.

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CTAGTT base sequence on DNA forms a GAUCAA base sequence with mRNA. GAUCAA base sequence on the mRNA is enough to allow tRNA to deliver 3 amino acids. Mutations occur when the base sequences are copied from DNA incorrectly. Meiosis and mitosis are both involved with the process of cellular division. The end product of meiosis and mitosis is the same. Normal body cells usually have paired chromosome strands Diploid cells have only one half of the total genetic material. Sperm cells are haploid because they have no paired chromosome strands. Haploid cells are produced by mitosis. During interphase normal body cells duplicate their genetic material. __ During meiosis the cell divides twice and the chromosomes duplicate twice.

Answer 1

Let's evaluate the truth of each statement:* **CTAGTT base sequence on DNA forms a GAUCAA base sequence with mRNA.** **FALSE** DNA uses thymine (T), while RNA uses uracil (U). The correct mRNA sequence would be **GAUCAA**. The given statement uses the correct RNA base but implies the DNA sequence is directly transcribed to RNA without changing T to U.* **GAUCAA base sequence on the mRNA is enough to allow tRNA to deliver 3 amino acids.** **TRUE** Each codon (a sequence of three mRNA bases) codes for one amino acid. GAUCAA has two codons (GAU and CAA), therefore it codes for two amino acids.* **Mutations occur when the base sequences are copied from DNA incorrectly.** **TRUE** Mutations are changes in the DNA sequence, often arising from errors during replication.* **Meiosis and mitosis are both involved with the process of cellular division.** **TRUE** Both are types of cell division.* **The end product of meiosis and mitosis is the same.** **FALSE** Mitosis produces two identical diploid daughter cells. Meiosis produces four genetically different haploid daughter cells.* **Normal body cells usually have paired chromosome strands.** **TRUE** Somatic (body) cells are diploid, meaning they have two sets of chromosomes (one from each parent).* **Diploid cells have only one half of the total genetic material.** **FALSE** Diploid cells have the *full* complement of genetic material for that organism. Haploid cells have half.* **Sperm cells are haploid because they have no paired chromosome strands.** **TRUE** Sperm cells (and egg cells) are gametes and are haploid, containing only one set of chromosomes.* **Haploid cells are produced by mitosis.** **FALSE** Haploid cells are produced by meiosis. Mitosis produces diploid cells.* **During interphase normal body cells duplicate their genetic material.** **TRUE** DNA replication occurs during the S phase of interphase, in preparation for cell division (mitosis or meiosis).* **During meiosis the cell divides twice and the chromosomes duplicate twice.** **FALSE** The chromosomes duplicate *once* (during interphase) and the cell divides *twice* (meiosis I and meiosis II).

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