Which organelles are found in both plant and animal cells?
A. nucleus, golgi apparatus, chloroplasts
B. ribosomes, mitochondria, plasma membranes
C. centrioles, cell wall, nucleolus
D. vacuoles, plastids, endoplasmic reticulum
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Mitochondria and Chloroplasts are thought to be related to symbiotic bacteria that were engulfed. Which of the following is NOT evidence for this theory?
A. They have their own DN
B. They can survive independently from the eukaryotic cell.
C. They can produce their own ribosomes.
D. They have double membranes and are similar in size to bacteria.
Which of the following cell structures could provide a paramecium with motility?
A. cilia
B. endoplasmic reticulum
C. microtubules
D. vesicles
All of the following are ways that meiosis leads to genetic variation in populations except
A. crossing over.
B. random chromatid assortment in meiosis II.
C. reducing gametes to haploids.
D. genetically identical daughter cells.
What is the purpose of meiosis?
A. Meiosis allows for DNA to make a copy of itself so that cell division can produce daughter cells with identical DNA as the parent cell.
B. Meiosis produces gametes with half the number of chromosomes as the parent so when fertilization occurs the offspring will have the same number of chromosomes as the parent.
C. Meiosis produces gametes with the same number chromosomes as the parent allowing the fertilized zygote to have additional chromosomes.
D. Meiosis uses the transcribed mRNA as the information code to make the proteins necessary for the body.
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