L.8.2A.1 test Mastery Connect 8-16

Which diagram accurately represents the relationship between chromosomes, DNA, and genes?

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A student examines a picture of an important biological molecule in a textbook and writes four statements about the molecule in a chart.

Which statement needs to be revised to make it true?

• Statement 1

• Statement 2

• Statement 3

• Statement 4

The image shows the relationship between chromosomes, genes, and DNA. Genes control the traits an offspring inherits. What do parents pass to the offspring to produce the offspring’s traits?

• cells

• chromosomes

• genes

• protein

Which statement is true about a relationship between DNA, a gene and a chromosome?

• A gene is similar to DNA in structure but different in function.

• A gene is similar to DNA in function but different in structure.

• A gene is made up of small segments of chromosomes.

• A gene is made up of a small segment of DNA.

Which statement is true about genetic information?

• A gene is a section of DNA and is found on a chromosome in the cell's nucleus.

• A DNA molecule is a section of a gene found on the nucleus of chromosome.

• A chromosome is a section of a gene found in the nucleus of a DNA molecule.

• The nucleus of a cell contains genes that are made up of chromosomes composed of DNA.

What relationship exists between genes and chromosomes?

• Genes are located on chromosomes which are found in the nucleus of cells.

• Genes produce chromosomes which transmit traits from one generation to another.

• Genes are made up of chromosomes which move from the nucleus to the cytoplasm.

• Genes and chromosomes produce alleles which determine the phenotype of offspring.

Which statement about DNA is true?

• Different people can have the same copy of DNA in their cells.

• DNA is made up of genes that carry hereditary information.

• DNA controls the genotype but not the phenotype of an organism.

• DNA controls the genotype only in the second and third generations.

Which explains the role of a gene?

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  A gene is a structure made of condensed DNA that replicates for reproduction.

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  A gene is a section of DNA that codes for a particular trait.

• A gene is a molecule that carries all the genetic information for an organism.

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  A gene is a physical characteristic designed for a specific function.

The model shows levels of organization for genetic material. Which is a correct description for the model?

• X is a chromosome that coils tightly to form a DNA molecule.

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  X is a DNA molecule that coils tightly to form a chromosome.

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  Y is a DNA molecule that coils tightly to form a chromosome.

• Y is a chromosome that coils tightly to form a DNA molecule.

Offspring inherit chromosomes from their parents. All of the physical features in offspring are controlled by genes.

Which statement is true about the relationship between chromosomes and genes?

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  Genes are made up of chromosomes.

• Genes are the smallest unit of chromosomes.

• Chromosomes are made up of numerous genes.

• Chromosomes are the smallest unit of genes.