What best describes the sex chromosomes in humans?

How does the structure of phylogeny charts explain homologous structures in organisms? New species branch off ancestral species, so two species can have similarities in body structure.

What might happen in a tropical rain forest biome if the area received very little rain for an extended period of time

After a genetic drift situation the allele frequencies will change. •True •False

Which item has the greatest effect on variation mutation agouti gene gene shape cell membrane structuire

Indicate whether the following statements about DNA fingerprinting are true or false. 1. DNA fingerprinting compares mitochondrial DNA samples. 2. DNA fingerprinting compares X chromosomes. 3. DNA fingerprinting decreases the necessary sample size.

As waves spread out, they typically gain energy. true or false

How did we learn that eukaryotic chromatin exists in the form of repeating nucleosomes, each consisting of about 200 base pairs and an octamer of histones?

Does the polarity of the multimeter leads matter when taking resistance measurements

Grasslands with scattered trees is called

What is another type of fast environmental change