Answer the following statements true (T) or false (F)
1. Plants appear green to the human eye because the pigment chlorophyll a absorbs the visible light wavelengths from either end of the visible spectrum, such as red and violet.
2. Calvin cycle reactions are an essential process by which plants produce lipids.
3. Plasmids are small loops of genetic material that are essential for a prokaryotic cell’s normal growth.
4. When a cell replicates and divides, most of the phases of mitosis involve reproduction of the cell’s genetic material.
5. This statement is true. When a cell replicates and divides, most of the phases of mitosis involve reproduction of the cell’s genetic material.
1. True
This statement is true. Plants appear green to the human eye because the pigment chlorophyll a absorbs the visible light wavelengths from either end of the visible spectrum, such as red and violet.
2. False
This statement is false. Calvin cycle reactions are an essential process by which plants produce glucose and other carbohydrates.
3. False
This statement is false. Plasmids are small loops of genetic material that are not essential for a prokaryotic cell’s normal growth.
4. True
This statement is true. When a cell replicates and divides, most of the phases of mitosis involve reproduction of the cell’s genetic material.
5. False
This statement is false. Mutations, mistakes made during the replication of a cell, are not always caught by checkpoints in the cell cycle, killing the abnormal cell.
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Explain how codon bias and GC content can be used to detect horizontal gene transfer within a genome
What will be an ideal response?
A group of individuals that can interbreed in nature and produce viable offspring would be considered to be a species according to the
A. phylogenetic species concept. B. biological species concept. C. evolutionary species concept. D. ecological species concept. E. general lineage concept.
Dikaryotic cells of fungi
A. are potential symbionts that can join with algae to form lichens. B. are nonseptate plasmodial masses with many nuclei and no cell partitioning. C. contain paired haploid nuclei that fail to fuse for an extended period of time. D. are just another form of haploid cells. E. is just another name for diploid cells.
Which of the following statements is NOT correct about flowering plants?
Select one: a. A sperm nucleus combines with one polar nucleus to form the endosperm. b. A sperm nucleus combines with the egg nucleus to eventually form the embryo. c. A pollen grain may be carried to the stigma of the ovary by the wind. d. A pollen tube grows down the style. e. They exhibit double fertilization.