Which of the following statements best describes how a corn plant comes to produce the bt toxin?
a. the bt gene is inserted into each plant cell, one at a time, by using a bacterial plasmid.
b. the bacteria containing the bt gene are sprayed onto the corn plants.
c. the bt gene is inserted into one plant cell by using a bacterial plasmid.
d. the bt gene is inserted into the soil and is taken into the corn plant through the roots.

Which phrases describe an extrusive rock? check all that apply. fine texture cooled slowly small crystal size found deep underground different, easily observed minerals

1. the passing of is the basis of heredity. 2. our encode the instructions that define our traits. 3. each of us has thousands of genes, which are made of and reside in our chromosomes. 4. in addition to our genes, the we live in also define our traits. 5. humans have two complete sets of chromosomes. 6. when parents conceive a child, each parent contributes set of chromosomes. 7. every child receives of its chromosomes from the mother and half from the father. 8. this transfer takes place at when the father’s sperm joins the mother’s egg. 9. while most cells in our bodies have two sets of chromosomes, or a total of egg and sperm each have chromosomes. 10. when egg and sperm unite they create a single cell called a 11. each parent contributes complete set of chromosomes to their child. 12. since the parents contribute the chromosomes to each new child, every child inherits a unique set of chromosomes. 13. as a result, every baby will have a combination of traits.

What are the two main phases of a cell cycle