bio 103 quiz

A photosynthetic, autotrophic prokaryote fits in the category represented by the letter_________ the figure below. A B C D

A

which of the following genetic changes NOT be passed from parent to child? a. a mutation is a skin cell b. the loss of a chromosome in a sperm cell c. the addition of a chromosome in an egg cell d. a translocation in a gamete

a. a mutation is a skin cell

Which of the following statements would indicate a pedigree that shows the inheritance pattern of a recessive X-linked disease? a. Most affected individuals are females b. Most affected individuals are males c.Males and females are affected equally d. The disease is seen in every generation

b. Most affected individuals are males

A__________ is a chart that shows genetic relationships within a family over several generations. a. karyotype b. pedigree c. punnett square d. single-gene disorder map

b.pedigree

Bacteria and archaea are both classified as a. eukaryotes b. protists c. fungi d. prokaryotes

d. prokaryotes

Photosynthetic __________ would NOT have chloroplasts. a. algae b. bacteria c. mosses d. flowering plants

b. bacteria

if one forgets to brush his or her teeth, bacteria may use _______ to attach onto the surface teeth a. flagella b. pili c. capsules d. plasma membranes

b. pili

Bacterial conjugation is the process is the process in which a bacterium a. splits in two b. exchanges DNA directly with another bacterium c. adheres to a surface to form a biofilm d. takes in DNA from its environment

b. exchanges DNA directly with another bacterium

An individual with a deep closed belly button is more likely to have more ________ bacteria his or her belly button compared to an individual with a shallow, open belly button. a. anaerobic b.aerobic c. nitrogen- fixing d. photoheterotrophic

a. anaerobic

Which of the following organisms found in the human microbiome is NOT known to be a_______________ a. archaeans b. gut bacteria c. fungi d. skin bacteria

a. archaeans

Jim is mowing the lawn and accidently runs over a large round object that seems to explode in a cloud of dust. Upon closer examination, he determines that the object was actually the club-shaped reproductive structure of an organism that has cells with cell walls but no chloroplasts , and the dust particles were actually spores. This organism is probably athat belongs to kingdom a. basidiomycete; Fungi b.ascomycete; Plantae c. zygomycete; Fungi d. basidiomycete; Plantae

a. basidiomycete; Fungi

Archaeans are often referred to as "extremophiles" because they are a. capable of living in extreme environments where other organisms can't function b. the only living organisms to reproduce using binary fission, an extreme form of asexual reproduction c. examples of the earliest life-forms on Earth and have existed for an extremely long time d. single-celled organisms that have extreme mechanisms for causing diseases in humans.

a. capable of living in extreme environments where other organisms can't function

Some protists break down waste material by consuming other dead organisms and releasing nutrients into the environment to be reused by producers and cycled back into the food chain. These protists are a. decomposers b. producers c. autotrophs d. auxotrophs

a. decomposers

Eukaryotic DNA is enclosed in two concentric layers of cell membranes that form the _____________ the eukaryotic cell. a. nuclear envelope b. nucleoid c. Golgi apparatus d. rough endoplasmic reticulum

a. nuclear envelope

the organism that causes malaria is transmitted to humans by the bite of mosquitoes. Once in the human bloodstream, this unicellular organism takes up residency inside the red blood cells. It has a nucleus and other cellular structures that are visible upon microscopic examination of the blood. This pathogenic organism is the a. protest, Plasmodium b.fungi, Plasmodium c. protist, Amoeba d. fungi, Amoeba

a. protest, Plasmodium

two copies of the same gene on a single chromosome would indicate a ___________ had occurred. a. deletion b. duplication c. inversion d. translocation

b. duplication

The organism Entamoeba histolytic is one of the causes of amoebic dysentery. Infection occurs when cysts of this organisms are swallowed and enter the patient's digestive tract by pushing its pseudopodia into the lining. This organism is a ______ that belongs to ________. a. prokaryote; domain bacteria b. eukaryote; kingdom Protista c. prokaryote ; kingdom Protista d. eukaryote; domain bacteria

b. eukaryote; kingdom Protista

In the pedigree show below the individual indicated represents a... a. healthy male b. healthy female c. affected male d. affected female

b. healthy female

Prokaryotes may pick up pieces of DNA from the environment or other bacteria and incorporate these pieces into their own genome through a. vertical gene transfer b. horizontal gene transfer c. sexual reproduction d. binary fission

b. horizontal gene transfer

DNA exists in a concentration of strands known as a nucleoid in __________ cells. a. eukaryotic b. prokaryotic c. protozoan d. fungal

b. prokaryotic

which of the following statements about homologous chromosomes is true? a. there are 46 pairs in humans b. they contain the same genes in the same locations c. they contain identical alleles in the same locations d. they are also known as sex chromosomes

b. they contain the same genes in the same locations

In a karyotype of a male, which of the following would indicate an abnormality? a. one X chromosome and one Y chromosome b. three copies of chromosome 22 c. 22 pairs of autosomes d. a total of 46 chromosomes

b. three copies of chromosome 22

Grapes harvested and crushed into juice will often produce a fermented beverage containing alcohol. Grains (such as wheat, barley, rye, or corn) will also produce an alcoholic beverage if they are soaked and allowed to ferment . Which of the following organisms , naturally present in the environment , is the likely cause of the fermentation? a. angiosperms b. yeasts c. basidiomycetes d. ciliates

b. yeasts

Sickle-cell disease is an inherited chronic blood disease caused by an autosomal recessive allele. Suppose a man with sickle-cell disease fathers a child by a woman who is a carrier for sickle-cell disease. What are the chances their children will exhibit the disease? a. 0% b. 25% c. 50% d.75%

c. 50%

The generation time for a prokaryote is 30 minutes. If one cell is present on a Petri dish, how many cells will be present after three hours? a. 16 b. 32 c. 64 d. 86

c. 64

In humans the " master sex switch" that determines whether an embryo will become a male is the a. X chromosome b. locus c. SRY gene d. androgen switch

c. SRY gene

Citizens use an app to document the location of ash trees in their community. These citizen scientists are participating a. in data analysis b. in experimental design c. in data collection d. as experimental subjects

c. in data collection

Yeasts provide leavening in bread by metabolizing the starches and sugars present in flour . Carbon dioxide bubbles are produced when the present in yeast cells use(s) the sugars for cellula respiration to produce energy for the cell. a. chloroplasts b.Golgi body c. mitochondria d. endoplasmic reticulum

c. mitochondria

During cell division a piece of a chromosome break off and reattaches to the same chromosome, but the piece is now in reverse order. How would this abnormality affect the chromosome? a. An extra copy of the chromosome will be made to ensure normal function b. the inverted section will be deleted to prevent problems c. the chromosome will take on a circular configuration d. Genes in the section that was inverted could lose normal function

d. Genes in the section that was inverted could lose normal function

It is particularly important for pregnant women to carefully wash their hands and take other Precautions if they have a pet cat and are changing the litter box . An organism occasionally carried by cats, pig, and sheep can infect humans and pass from mother to child in utero, resulting in severe symptoms in the growing child. Microscopic examination of this organism shows a nucleus and other visible cellular organelles. It obtains all its nutrients from whichever host it currently occupies and can multiply by fission . This pathogenic organism is the a. plant, Plasmodium vivax b. protist, Plasmodium c.protist, amoeba d. fungi, amoeba

d. fungi, amoeba