Which of the following is false about a cell undergoing mitosis with 4 chromosomes?
A. During metaphase there are 4 chromosomes
B. During prophase the homologous chromosomes line up and cross-over
C. During metaphase there are 4 centromeres
D. During anaphase there are 8 DNA molecules
Ans: B. During prophase the homologous chromosomes line up and cross-over
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Yeasts are immature fungal spores
Indicate whether the statement is true or false.
Crossing over is one of the most important events in meiosis because
A) homologous chromatids must be separated into different daughter cells. B) homologous chromosomes must be separated into different daughter cells. C) the number of chromosomes allotted to each daughter cell must be halved. D) it produces new arrays of alleles on chromosomes. E) All of the choices are correct.
Viruses replicate by.
A) binary fission. B) budding of a daughter cell from the parent cell. C) producing reproductive spores. D) using a host cell to produce and assemble components.
Sara is 5 ft 4 in. tall and weighs 115 lb. Katy is 5 ft 10 in. tall and weighs 127 lb. They both have a BMI of 18.5. How can they have the same BMI? What is the value of knowing the BMI?
What will be an ideal response?