Which biomolecule below contains hydrogen, oxygen, nitrogen, carbon, and phosphorous?
a. carbohydrate
b. lipids
c. protein
d. nucleic acids
Answer: d. nucleic acids
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Cells - Genetics
- The cell membrane of the red blood cell will allow water, oxygen, carbon dioxide, and glucose to pass through. because other substances are blocked from entering, this membrane is called:
- A researchers is studying a particular disease-causing agent. the agent has a capsid (protein coat), lacks a organelles, and can reproduce only when it is inside an animal cell. Which answer choice below should the researcher classify the agent?
- Which event occurs during the G1 phase?
- Which set of characteristics below describes a carbohydrate?
- Which organelle below is present in both prokaryotes and eukaryotes?
- Which substance represented in the data table above is a carbohydrate?
- Which choice below best explains why a bacterial cell is classified as a prokaryote instead of a eukaryote?
- Which one of the following is not found in the genetic material of all organisms?
- Individuals with HIV sometimes contract pneumonia infections that are rare in the rest of the population because people with HIV:
- The parts of DNA that provide the code for proteins are the:
- A biologist observes that some cells are growing faster than others in a tissue culture. a week later, the scientist notices that the fast- growing cells have tripled in number.This observation is a possible clue that the fast- growing cells-
- Which statement below describes how the genetic code is common to all organisms?
- The uncontrolled division of certain cells, Which invade the surrounding tissues and interfere with the normal functioning of the body, is known as:
- Fireflies produce light inside their bodies. the enzyme luciferase is involved in the reaction that produces the light. scientists have isolated the luciferase gene. During an investigation, a scientist inserts the luciferase gene into DNA of cells from another organism. when these cells produce light, the scientist knows Which event below has occurred?
- mustard gas removes guanine (G) from DNA. For developing embryos of many organisms, exposure to mustard gas can cause serious deformities because guanine:
- Which is the correct order?
- people who have been exposed to excessive radiation often experience mutations. if there mutations only occur in somatic ( body) cells, these people may:
- what is the typical sequence of event in lytic viral reproduction?
- Which statement below best summarizes the primary difference between cells and viruses?
- Which of the terms below apply to onion?
- Which cross will produce offspring with a genotypic ratio of 1:2:1?
- the purpose of meiosis is to:
- why is crossing over important?
- Which term describes the pair of alleles Dd?