BIO 120 Quiz 10 (Ch. 13/17)
Which of the following results when homologous chromosomes cross over in meiosis?
Corresponding segments of non-sister chromatids are exchanged.
During which of the following phases of meiosis do homologous chromosomes separate?
anaphase I
Which of the following processes occurs in prokaryotes but not in eukaryotes?
simultaneous transcription and translation of the same mRNA
A particular triplet of bases in the template strand of DNA is 5'-AGT-3'. What would be the corresponding codon for the mRNA that is transcribed?
3'-UCA-5'
The figure represents the nucleus of a diploid animal cell about to enter mitosis. How many different pairs of chromosomes are present in the diagram?
4
Which of the following statements is true of a species that has a chromosome number of 2n = 16?
Each diploid cell has eight homologous pairs of chromosomes.
A cell has completed meiosis I and the first cytokinesis, and is just beginning meiosis II. Which of the following statements describes its genetic contents?
It has half the amount of DNA as the cell that began meiosis.
A particular organism has 46 chromosomes in its karyotype. Which of the following statements is correct regarding this organism?
It produces gametes with 23 chromosomes.
Which of the following processes occurs as part of transcription?
RNA is synthesized
Which of the following statements describes a major difference between mitosis and meiosis I in a diploid organism?
Sister chromatids separate in mitosis, while homologous pairs of chromosomes separate in meiosis I.
Which of the following statements describes the chromosomal makeup of each daughter cell after telophase of meiosis I?
The cells are haploid, and the chromosomes are each composed of two chromatids.
During which of the following processes do sister chromatids separate from each other?
during both mitosis and meiosis II
According to the central dogma, which of the following intermediate molecules correctly completes the flow chart describing the flow of information in a cell blank? DNA - ________ - Proteins
mRNA
Which of the following phrases defines the term genome?
the complete set of an organism's genes and other DNA sequences
Which answer correctly compares the primary transcript in the nucleus of a eukaryotic cell with the functional mRNA?
the primary transcript is larger than the mRNA
Transcription in eukaryotes requires which of the following molecules in addition to RNA polymerase?
transcription factors
