In a typical human cell, DNA polymerase synthesizes DNA at a rate of approximately 50 nucleotides per second. Human chromosome 1 contains about 250 million base pairs. If a single origin of replication were used, how long would it take the cell to copy this chromosome?
A) less than 24 hours
B) 1 to 2 days
C) 1 to 2 weeks
D) 50 to 60 days
E) 110 to 120 days
D) 50 to 60 days
Biology & Microbiology
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Which group of colonial protists has the greatest relatedness to animals?
a. Ascomycetes b. Green algae c. Zygomycetes d. Choanoflagellates e. Amoebas
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Give a short, concise description of the difference between mitosis and meiosis
What will be an ideal response?
Biology & Microbiology
The "powerhouse" of the cell is the
a. mitochondrion. b. Golgi body. c. nucleus. d. ribosome. e. endoplasmic reticulum.
Biology & Microbiology
When erythrocytes are in the capillaries of the lungs, O2 diffuses ________ and is bound to ________
Fill in the blank with correct word.
Biology & Microbiology