During S phase, each chromatid is copied, forming
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sister chromatids.
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For the macromolecules listed here, select the correct order for the proper flow of genetic information.
1) RNA 2) protein 3) DNA A) 1 > 2 > 3 B) 2 > 3 > 1 C) 1 > 3 > 2 D) 3 > 1 > 2
Answer the following questions true (T) or false (F)
1. In recombination (crossing over), DNA is exchanged between homologous, non-sister chromatids. 2. In humans, the sperm contributes the chromosome that determines whether the child will be a boy or a girl. 3. If an egg is fertilized by a sperm carrying an X chromosome, the resulting child might be either a boy or a girl, depending on the sex chromosome carried by the egg.
The _____ and _____ of the light being refracted influence the refractive index for any substance.
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The endosymbiotic theory suggests that chloroplasts evolved from cyanobacteria. What features of cyanobacteria support this premise?
What will be an ideal response?