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1. What is the relationship among chromosomes, genes, and DNA?
A) Chromosomes are sections of DNA found on genes. Genes are long, tightly would strands of DNA.
B) Genes are made up of tightly wound strands of DNA. Chromosomes are made up of one or more genes.
C) Genes read the DNA code found on chromosomes. Chromosomes are long tightly wound strands of DNA.
D) DNA reads the nucleotide sequences found in genes. Genes are located on tightly wound structures called chromosomes.
2. A botanist has the juiciest tomatoes in his backyard garden.
What is true about these tomatoes?
A) They are watered more often than tomatoes grown in other gardens.
B) They are grown from seeds that come from plants that produce juicier fruit.
C) They are saltier, so they absorb more water from their surroundings, making them juicier.
D) They are grown by someone with a green thumb, so they grow better.
3. What did Mendel's cross-pollination of pea plants prove?
A) It takes four generations of offspring to identify the parents' factors.
B) Each parent only passes on one-half of its hereditary factors to each offspring.
C) Inherited factors combine in offspring to create entirely new characteristics.
D) There is no such thing as a true-breeding plant; they all have hidden factors.
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