The answer would be D. The gametes of sexually-reproducing organisms reshuffle through crossing over and independent assortment during meiosis, creating genetic variation in their offspring.
Tip: remember mitosis (my toes has nothing to do with sex) so meiosis is the opposite of it.
Answer:
Sunlight stimulates the growth of phytoplanktons which belong to the first trophic level in an aquatic ecosystem pyramid. If these do not exist, aquatic ecosystem would also disappear.
Deletions occur when a chromosome breaks and some genetic material is lost. Deletions can be large or small, and can occur anywhere along a chromosome.
Answer:
PCR makes it possible to sequence the tiniest amount of DNA from crime scenes.
Explanation:
PCR is a process where regions of DNA are amplified to create lots of copies of the DNA. This creates enough material for the lab assistants to be able to analyze the DNA, including sequencing, gel electrophoresis, and other techniques.
This is helpful in crime scenes, where sometimes there are very small amounts of DNA that need to be analyzed.
