PAT Science Biodiversity Flashcards
(3 cards)
What is the relationship between chromosomes, genes, and DNA in the structure and function of living organisms?
A. Genes are made up of chromosomes, which are made of DNA.
B. Chromosomes are made up of genes, which are made of DNA.
C. DNA is made of chromosomes, which contain genes.
D. Chromosomes, genes, and DNA are unrelated structures
Correct Answer: B. Chromosomes are made up of genes, which are made of DNA.
Which of the following best describes the two main types of cell division in living organisms?
A. Binary fission occurs in plants, while meiosis occurs in animals only.
B. Mitosis and meiosis both occur in bacteria to produce sex cells.
C. Binary fission is used by single-celled organisms for asexual reproduction, while meiosis forms sex cells in multicellular organisms.
D. All cells divide by binary fission to produce identical sex cells.
Correct Answer: C. Binary fission is used by single-celled organisms for asexual reproduction, while meiosis forms sex cells in multicellular organisms.
