Genetics 1

science

100

All BUT one of the following is a component of nucleic acids. Nucleic acids DO NOT contain

amino acids

200

You have been instructed to develop a classification system for several plants on campus. All four are in the same kingdom, Plantae. Based on the plant traits listed in the table, which set of divisions should you make?

Division 1 - vascular or nonvascular Division 2 - seeds or no seeds Division 3 - flowering or nonflowering

300

While most rabbits and hares try to avoid their predators by outrunning them, the snowshoe hare prefers to hide. Which adaptation in the table is MOST LIKELY the reason for this?

white fur in winter

400

Biotechnology has helped produce crops that are resistant to certain pests, crops that produce high yields, and more nitrogen-efficient crops. What is a negative impact that bioengineered plants may have on the environment?

Beneficial insects may be adversely affected.

500

ATP is called the energy currency of the cell because

most of the energy that drives metabolism is supplied by ATP.

stuff

100

Messenger RNA carries a(n) ___________ of the DNA’s instructions out of the nucleus to the ___________.

transcript, ribosome

200

The graph illustrates what has happened over an 8 year period, when non-native Nile perch were introduced to Lake Malawi in Africa. Based on the data, what recommendation would you make to African biologists?

Remove or reduce the Nile perch as quickly as possible, as it is clearly out-competing the pike cichlid.

300

The __________ molecule is known as the universal energy source of the cell

ATP

400

Natural selection can lead to the formation of a new species which is called

speciation.

500

If bed bugs had never been exposed to DDT in the 1950's and 1960's, how would you expect that to affect bed bugs' resistance to pyrethroids during the last decade?

Without the use of DDT, natural selection would not have favored any mutations that provided protection from pesticides; bed bugs would be more susceptible to today's chemicals.

more

100

As a result of _______________, the incorrect sequence of amino acids will be translated into a protein, resulting in a mutation

deletion

200

Why would too much salt intake cause someone to develop high blood pressure?

Salt in the bloodstream causes fluids to enter the blood from surrounding cells, due to osmosis.

300

DNA, amino acids, and proteins are all molecules that play a vital role in your life, even though you have never seen them. In fact, these three types of molecules are tightly linked. What is the relationship between them?

DNA codes call for specific amino acids, which are assembled into proteins needed by your body.

400

Consider the diagram of a eukaryote and a prokaryote. According to cell theory

both are single cells that carry out the functions of life

500

The organism shown in the drawing usually reproduces through the _________ process called binary fission.

asexual

science

100

All of the statements EXCEPT one are true about mutations. Which statement is false?

Mutations must be present in parents and then passed to offspring.

200

Your gender, whether you are male or female, is determined by the

X or Y chromosomes, inherited from father.

300

DNA and RNA differ in all BUT one of the following ways

DNA contains the base uracil, while RNA contains the base thymine instead

400

Which of these physical factors most shapes the characteristics of a ecosystem?

temperature and rainfall

500

Which statement below BEST summarizes the role of the DNA molecule in cells?

provides the instructions for making proteins

stuff

100

Imagine the pH of the environment in which the hydrolysis of sucrose is to occur has dropped to 2. How will this drop in pH influence point D in the model?

The substrate (A) will no longer fit into the active site (C) because the enzyme has changed shape.

200

Which of these is an ethical issue associated with stem cell therapy?

Embryos are destroyed when stem cells are obtained from them.

300

Runners are a type of ___________ reproduction in strawberry plants

asexual

400

James was sick, went to the doctor, and was diagnosed with a bacterial throat infection. His infection was treated with antibiotics. In a few days, James felt much better, but some resistant bacteria survived and, overnight, James was sick again. This time, he had to take a much stronger antibiotic.The resistant bacterial cells illustrate what characteristic of life?

All living things adapt to changes in their environment.

500

In an experiment, Mendel grew 633 green pea plants with either wrinkled seed-coats (dominant) or smooth (recessive). If the ratio of the wrinkled seed-coat plants to the straight seed-coat plants was 3:1, how many straight seed-coat plants did he grow?

158