Yes, all animals inhale (in) and exhale (out). Except for fish.
The DNA of a human cell can be cut and rearranged by using Enzymes. To cut DNA into smaller segments, enzyme nucleases are used. They do this by taking the phsophodiester bonds through hydrolysis and catalyzing it. when these enzymes comes into contact with a DNA sequence with a shape that matches a part of the enzyme, called the recognition site, it wraps around the DNA and causes a break in both strands of the molecule.
Simple, Your BRAIN can only process so much, so the signal to your vocal cords and tongue slow and You mess up Example:
SAY PETER Piper picked a pack a pickle peppers 8x
Did you mess up? I bet so
also here an easy one. RUBER BABY BUGGY BUMPER
Homozygous means "the same" and Heterozygous means "different". If a pheno type is homozygous, for example, it could be XX or xx, while heterozygous could be Xx. Hope that helps.