Which part of a cell carries the information that is passed from one generation to the next Mcq?

Multiple choice questions from class

1.)  What is the relationship among DNA, a gene, and a chromosome?
A) A chromosome contains hundreds of genes, which are composed of DNA.
B) A chromosome contains hundreds of genes, which are composed of protein.
C) A gene contains hundreds of chromosomes, which are composed of protein.
D) A gene is composed of DNA, but there is no relationship to a chromosome.
E) A gene contains hundreds of chromosomes, which are composed of DNA.

2.)  The �one gene � one polypeptide� theory states that
A) the synthesis of each gene is catalyzed by one specific enzyme.
B) the synthesis of each enzyme is catalyzed by one specific gene.
C) the function of an individual gene is to dictate the production of a specific polypeptide.
D) each polypeptide catalyzes a specific reaction.
E) both a and d.

3.) Any change in the nucleotide sequence of the DNA of a gene is called
A) a mutation.
B) an advantage.
C) a codon.
D) an anticodon.
E) a translocation.

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?
A) the rarity of such mutations
B) some amino acids have more than one codon
C) a correcting mechanism that is part of the mRNA molecule
D) A and B
E) A, B and C

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?
A) The daughter cells will have half the amount of cytoplasm and half the amount of DNA.
B) The daughter cells will have half the number of chromosomes and half the amount of DNA.
C) The daughter cells will have the same number of chromosomes and half the amount of DNA.
D) The daughter cells will have the same number of chromosomes and the same amount of DNA.
E) The daughter cells will have the same number of chromosomes and twice the amount of DNA.

7.)  Cytokinesis usually, but not always, follows mitosis. If cells undergo mitosis and not cytokinesis, this would result in
A) a cell with a single large nucleus
B) a cell with two nuclei.
C) cells with abnormally small nuclei
D) feedback responses that prevent mitosis
E) death of a cell line

8.)  It is difficult to observe individual chromosomes with a light microscope during prophase because
A) the DNA has not been replicated yet.
B) they are uncoiled in long, thin strands.
C) they leave the nucleus and are dispersed to other parts of the cell.
D) sister chromatids do not pair up until division starts.
E) the spindle must move them to the metaphase plate before they
become visible.

9.)  The word homologous literally means same location. How does this relate to homologous chromosomes?
A) All of the below are correct.
B) The bands resulting from staining are found in the same location.
C) The chromosomes have the same genes in the same location.
D) The chromosomes always move to the same location in the cell during division.
E) Both B and C are correct.

10.)  In a given organism, how do cells at completion of meiosis compare with cells that are just about to begin meiosis?
A) They have half the number of chromosomes and one-fourth the amount of DNA.
B) They have half the amount of cytoplasm and twice the amount of DNA.
C) They have twice the amount of cytoplasm and half the amount of DNA.
D) They have the same number of chromosomes and half the amount of DNA.
E) They have half the number of chromosomes and half the amount of DNA.

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)
A) dominant.
B) recessive.
C) homologous.
D) heterozygous.
E) none of the above.
 

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
A) loci.
B) supergenes.
C) chromosomes.
D) alleles.
E) gametes.

13)  In crossing a homozygous recessive with a heterozygote, what is the chance of getting an offspring with the homozygous recessive phenotype?
A) 75% B) 25%    C) 50%    D) 0%    E) 100%

14)  In a cross between two heterozygous (Aa), results will be:
A) in the ratio 1:3 homozygous to heterozygous
B) in the ratio 1:1 homozygous to heterozygous
C) in the ratio 1 :3 heterozygous to homozygous
D) all heterozygous
E) all homozygous

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.