Patients with some forms of cancer receive bone marrow transplants as treatment. What type of biotechnology is this treatment?

Suppose you have monohybrid pea plants in your garden and find that they produce round seed to wrinkled seeds in the ratio of 3: 1. if the allele are designated (r & r) receptively. what is the probable genotypes of the round seeds which produced f 1 ? rr & rr rr only rr & rr rr only rr only

The most famous fossil called archaeopteryx is which of the following? a dinosaur a fern a fish a bird

Achemical substance made by glands in the endocrine system that travel through the bloodstream and affects cells and tissues throughout the body ?