Almost all scientists support the idea that the global warming observed over the past 100 years has been caused by elevated levels of gases in the atmosphere. Which gas is primarily responsible for this problem?
A) carbon dioxide
B) nitrous oxide
C) oxygen
D) ozone
A
You might also like to view...
Which of the following does not describe an instance in which weak chemical bonds are useful in biological systems?
A. the bonding of antibodies to the antigens they recognize B. the folding of proteins into their active conformation C. the stabilization of DNA double-stranded helices D. the stabilization of protein structure by the creation of salt bridges between oppositely charged amino acids E. a gecko's ability to climb surfaces such as glass
You are a genetic counselor, and a couple comes to you with concerns that if they have a child
together it could have hemophilia. Neither one of them has hemophilia, but the woman's biological father did have an X-linked recessive form of hemophilia. Which of the following would be a correct thing to tell them?
a. Any child that they produce will have a 50% chance of having hemophilia. b. All of their male offspring will have hemophilia, and each of their female offspring will have a 50% chance of having hemophilia. c. None of their offspring should have hemophilia, but all of their female offspring will be carriers for hemophilia. d. Each of their male offspring will have a 50% chance of having hemophilia, and while their female offspring should not have hemophilia, they will each have a 50% chance of being carriers. e. All of their male offspring will have hemophilia, and while their female offspring should not have hemophilia, they will all be carriers.
A behavior that has a genetic basis is subject to evolution by __________. Fill in the blank(s) with the appropriate word(s)
Proteins are made of ________________________, and the sequence of these determine how the protein will fold up and take shape, which ultimately determines it's function.
Fill in the blank(s) with the appropriate word(s).