genes, dna, heredity

A chromosome is best described as a

• gene that has more than one form.
  
• green cell found in many plants.
  
• strand of DNA containing genetic information.
  
• reproductive cell found in certain kinds of bacteria

There is a segment of DNA that codes for every trait that a person has. These segments of DNA are found on
chromosomes and are called ________.

• Deoxyribonucleic acid
• Genes
• Heredity
  
• Recessive Traits

A single piece of coiled DNA found in the cells; contains genes that encode traits.

• gene
• chromosome
• trait
• DNA

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.
  Question

What is the relationship between DNA and chromosomes?

• Chromosomes are made of DNA
• DNA is made of chromosomes
• DNA and chromosomes are the same thing.
• All of the above are correct

How many pairs of chromosomes exist in each of your cells?

• 10
• 12
• 23
• 46

Why are your chromosomes arranged in pairs?

• Scientists have no idea
• Because you get one from your mom and one from your dad
• Because pairs can divide easier
• Because DNA is awesome

Which is true about DNA?

• Only animals have DNA in their cells
• DNA research is simple and quick
• DNA contains many genes
• None of the above are true.

Where is the genetic information stored in dogs?

• Only in the skin cells

• Only in the reproductive cells

• In its environment

• In all of its cells

• Only in blood cells

If one leaf cell in a plant contains 30 chromosomes, how many chromosomes are there in a root cell from this same plant?

• 15

• 20

• 30

• 40

• 60