Multiple choice questions from class 1.) What is the relationship among DNA, a gene, and a chromosome? Show
2.) The �one gene � one polypeptide� theory states that 3.) Any change in the nucleotide sequence of the DNA of a gene is called 4.) A base substitution mutation in a gene sometimes has no effect on the protein the gene codes for. Which of the following factors could account for this? 5.) A researcher treats cells with a chemical that prevents DNA synthesis from starting. This treatment would trap the cells in which part of the cell cycle? 6.) How do the daughter cells at the end of mitosis and cytokinesis compare with their parent cell when it was in G1 of the cell cycle? 7.) Cytokinesis usually, but not always, follows mitosis. If cells undergo mitosis and not cytokinesis, this would result in 8.) It is difficult to observe individual chromosomes with a light microscope during prophase because 9.) The word homologous literally means same location. How does this relate to homologous chromosomes? 10.) In a given organism, how do cells at completion of
meiosis compare with cells that are just about to begin meiosis? 11.) An allele that is fully expressed
is referred to as (fully expressed means that the allele is transcribed and translated into a perfectly functional protein) 12.) When a gene for a given trait comes in alternative versions that specify different forms of the trait (for example, purple-flower and white-flower versions of a flower color gene), the versions of the gene are called 13) In crossing a homozygous recessive with a heterozygote, what is the chance of getting an offspring with the homozygous recessive phenotype? 14) In a cross between two heterozygous (Aa), results will be: Answers: 1.A, 2.C, 3.A, 4.B, 5.G1, 6.D, 7.B, 8.B, 9.E, 10.A, 11.A, 12.D, 13.C, 14.B Which part of cell carries the information that is passed from one generation to the next?The type of RNA that contains the information for making a protein is called messenger RNA (mRNA) because it carries the information, or message, from the DNA out of the nucleus into the cytoplasm.
Which part of a cell carries the information that is passed from one generation to the next * A cell B nucleus C cytoplasm D chloroplast?The chromosomes and genes which have genetical characters and transmit them from one generation to another are found in the nucleus. Thus option B is the correct answer.
Which part of the cell that carries the genetic information?We now know that the DNA carries the hereditary information of the cell (Figure 4-2). In contrast, the protein components of chromosomes function largely to package and control the enormously long DNA molecules so that they fit inside cells and can easily be accessed by them.
How does the information from the DNA passed on from one cell to another?Cell division is the mechanism by which DNA is passed from one generation of cells to the next and ultimately, from parent organisms to their offspring. Although eukaryotes and prokaryotes both engage in cell division, they do so in different ways.
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