1. The passing of __________________ is the basis of heredity. 2. Our ________________ encode the instructions that define our t
raits. 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 helps 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.
Yes, this is true because some bacteria in our environment tends to either fend off of or kill other types of bacteria. In this case, this bacteria is helpful because it turns gaseous nitrogen into a form that can be absorbed and used by plants in our environment.
