Bio 100 Lab Final

A duplicated chromosome consists of two _________________.

sister chromatids

From the Central Dogma and Genetic Medicine activity: Which of the following genetic therapies was discussed when discussing Cystic Fibrosis?

small molecule drugs

In the video experiment on anthocyanin in beets, we discovered a piece of lab equipment that helps us to measure absorbance. What's the piece of equipment called?

spectrophotometer

You viewed an experiment that used iodine, starch, and dialysis tubing. We found out that certain molecules are too large to cross the cell membrane with passive transport alone. From the experiment, which molecule was too large to cross the membrane of the dialysis tubing?

starch

Select all that apply: The water cycle factors in which of the following processes:

subsurface water flow streamflow condensation and precipitation evaporation and sublimation surface runoff and snowmelt

What is the purpose of gene therapy?

to deliver corrected DNA to cells that have gene mutations causing disease

Which suspect or suspects are most likely innocent? (Choose all that apply)

2, 3, 4

Hypoxic conditions occur when dissolved oxygen levels fall below___mL of O2/L of water, which will cause fish and other marine life to abandon their habitats or die.

2.0

Which suspect may be related to the person who committed the crime?

5

Which of the onion root cells is in prophase?

B (circle one)

From the Central Dogma and Genetic Medicine activity: What is the purpose of CRISPR-Cas9?

CRISPR is used to edit the DNA of a cell, like a molecular scalpel

From our Case Study on Kimberly: ____________________ is a devastating illness that affects the lungs, pancreas, and intestines-- often causing them to fill with mucus. In 1989, researchers discovered that the disease is caused by a mutation in a gene that produces a protein that channels chloride across cellular membranes. People with two copies (or alleles) of the mutated gene have a buildup of mucus in the lungs, intestines, and other organs due to nonfunctioning or absent channel proteins. Researchers have found that small-molecule drugs are able to interact directly with disease-causing proteins, blocking their negative effects.

Cystic fibrosis

Select all that apply: What is the evidence that supports the theory of evolution by natural selection?

Molecular biology Anatomy and physiology Fossils Biogeography

What is key to recognition of a trait whose expression is determined by the effects of two or more genes (polygenic inheritance)?

The trait varies along a continuum in the population

Human blood can harbor infectious agents.

True

In one of the videos you watched on diffusion, the scientist put food-dye in two beakers of water, one hot and one cold. True or False: the dye diffused faster in the hot water and slower in the cold water.

True

Only 2.5 percent of water on Earth is fresh water, and less than 1 percent of fresh water is easily accessible to living things.

True

When using the high power lens, you only use fine focus- not coarse.

True

How do scientists know that the hominid called "Ardi" is about 4.4 million years old?

by analyzing volcanic deposits below the layer containing Ardi

Where in the cell does glycolysis occur?

cytoplasm

Complete the equation: monosaccharide + monosaccharide →________ + water

disaccharide

The branch of biology that explains both the diversity and the unity of life is ______.

evolution

A specific stretch of DNA that programs the amino acid sequence of a polypeptide is a ________.

gene

Which of these equations describes aerobic cellular respiration?

glucose + oxygen --> carbon dioxide + water + energy

A cell that has completed the cell cycle without undergoing cytokinesis would _________________.

have two nuclei

In humans, the inheritance of ______ is best explained as being polygenic.

height

Saturated fats are saturated with ________.

hydrogen

From the interactive video: Great Transitions Which of the following are accurate statements regarding human evolution? Select all that apply.

in the most recent phase of human evolution, there has been a greater reliance on culture the first humans evolved in Africa the fossil record contains animals with features that are intermediate between those of modern humans and quadrupedal apes

Many human traits, such as our performance on intelligence tests or our susceptibility to heart disease, are ______.

influenced by both genes and the environment

Lactic acid build up in muscles is a sign that __________.

insufficient oxygen is reaching the muscles

People that are lactose intolerant do not have enough _________.

lactase

Linked genes are usually

located close together on a chromosome

When using the compound microscope, which objective lens should you use first to locate the specimen?

low or scanning

The above figure shows that _________________.

meiosis results in the formation of four haploid daughter cells

One difference between mitosis and meiosis is ______.

mitosis produces cells genetically identical to the parent cell, but meiosis does not

A symbiotic relationship where both of the co-existing species benefit from the interaction is called ________.

mutualism

Match each monomer with it's polymer!

nucleotide - nucleic acid amino acid - protein triglyceride - fats/lipids monosaccharide - carbohydrate

A process is referred to as aerobic if it requires ____________.

oxygen

The final electron acceptor of cellular respiration is ___________.

oxygen

In aquatic ecosystems, what name is given to the region where photosynthesis can occur?

photic zone

From the Central Dogma and Genetic Medicine activity: Which of the following genetic therapies was discussed when discussing Huntington's Disease?

RNA Interference

From the short film Some Animals Are More Equal Than Others: Trophic Cascades and Keystone Species: Which statement below explains why the mussels in Mukkaw Bay were able to quickly cover the rockface in Paine's experiment?

Starfish feed on mussels, so when the starfish were removed the mussels no longer had a predator and their populations grew unchecked.

Accidents never happen in science laboratories.

False

Fifteen minutes is too long to rinse an eye that has had chemicals splashed into it.

False

From the short film Some Animals Are More Equal Than Others: Trophic Cascades and Keystone Species: True/False: All members of a food web are equal in abundance and in their relative effects on one another.

False

Mitosis results in 2 haploid daughter cells, normally found in human sexual reproductive organs (e.g. sperm and egg).

False

Toxic chemicals that are dry are O.K. to get on your skin.

False

True/False: Every member of a food web is the prey of another member of the food web.

False

We learned how soap works in today's lab. True/False: the hydrophilic heads of the soap molecule face towards the grease molecules.

False

You do not need gloves to dissect animals.

False