Bio 100 Exam 1 With 100% Correct Answers 2023, Exams of Advanced Education

Download Bio 100 Exam 1 With 100% Correct Answers 2023 and more Exams Advanced Education in PDF only on Docsity!

Bio 100 Exam 1 With 100% Correct

Answers 2023

a scientific theory is: - Correct Answer-e. all of the above pleiotropy is: - Correct Answer-c. when one gene influences multiple traits Which of the following examples would be considered a primary source of scientific information? - Correct Answer-b. An article on concussions is published after peer review in a recognized research journal Which one of the following is most correct about scientific knowledge - Correct Answer- d. Scientific knowledge is based on the accumulation of measurable evidence and is the single best method for predicting the future. A true breeding black dog and a true breeding white dog mate. If the alleles for black and white are codominant then their puppies will be cute, and each puppy will also be: - Correct Answer-e. All will be covered in black and white patches A true breeding red frog and a true breeding white frog mate. If the alleles for red and white are incompletely dominant then their tadpoles will be cute and: - Correct Answer- d. All will be Pink Judy has a cellular growth disorder. The cells in her pancreas began to grow in an uncontrolled and invasive way. This disorder is called _____________ - Correct Answer-d. Cancer The cycle of cell division (including copying an organisms DNA) is controlled by - Correct Answer-a. Checkpoints DNA - Correct Answer-d. All of the above Ultimately, the differences between any two organisms (e.g. you and the mite in your eyebrow) is the result of: - Correct Answer-d. All of the above Which of the following is characteristic of a metastasized tumor - Correct Answer-it invasive into parts of the body well beyond the site of origin How many different types of nucleotide bases are used to encode all the genetic information in a molecule of DNA? - Correct Answer-b. 4 Angiogenesis - Correct Answer-a. provides tumors with new blood vessels

Alleles are genes that - Correct Answer-c. occupy corresponding places in homologous chromosomes. When two different alleles are present, the one that is expressed is: - Correct Answer-a. dominant homologous chromosomes - Correct Answer-d. contain alleles for the same traits When the ends of chromosomes get too short apoptosis is triggered. These ends of chromosomes are called - Correct Answer-b. Telomeres Cancer is most likely to occur in which of the following organs: - Correct Answer-c. Skin and blood Which of the following is a good hypothesis - Correct Answer-d. Evansville is the hottest city in Indiana today Taylor Swift is a tall woman with blonde hair. She has blue eyes. What is the term for these observable traits in Taylor? - Correct Answer-b. Phenotypes What is a mutation? What happens to most cells that can't correct mutations at checkpoints? - Correct Answer-Any error in DNA replication such as a deletion. They are killed off by apoptosis. Mutations in proto-oncogenes (PO) and tumor supressor genes (TS) often cause cancer. a.) What do these two genes do? b.) Why can't we just remove these genes? - Correct Answer-PO ~ Suppresses apoptosis and promote the cell cycle TS ~ Suppresses cell division

• These genes are important to regulate the cell cycle and regulating when apoptosis occurs What are the cell division checkpoints? What happens at each one? - Correct Answer- Check 1 = G1 - Original DNA Check 2 = G2 - Checks new copy with original to see if correct Check 3 = M - Chromosomes line up and split up Biology is the study of life. List and briefly describe the characteristics of all life. - Correct Answer-CELL ORGANIZATION - each cell has its place and each cell is organized in a certain way to be a living thing METABOLISM - Living things acquire materials and energy RESPOND - movement and reaction to environment REPRODUCTION - produce offspring either sexually or asexually ADAPTATION - modifications that make organisms more suited to their way of life

Briefly explain what PCR OR the electrophoresis gel do to identify the DNA from the crime scene. In other words, how do we get from trace amounts of DNA to the gel illustrated above? - Correct Answer-Electrophoresis gel takes the DNA samples that have been multiplied and spreads them out through a gel based on the size. This occurs when negative DNA is met with the positive charge at other end of the gel, moving it downward. The smaller strands move further down the gel than the longer strands. Then the gel can be read and different DNA samples can be compared. Define science, and then discuss several reasons why it is important that the public be knowledgeable about science. Use two arguments/examples from the article "Why Study Science" by Jared Diamond, as well as from the text and lectures. What are potential consequences if the public is not knowledgeable. - Correct Answer-Science is the study of the natural observable world. Reasons to study:

1. Politically informed
2. Protect against false information Consequences:
3. Ecosystems being destroyed by climate change