final bz 110

A man with blood type AB can't be the father of a child with blood type ___.

O

Natural selection acts on individual ________, not on individual genes.

phenotypes

An inactivated X chromosome in the nuclei of female mammals is called ____________.

  

a Barr body

 

In which stage of mitosis do the chromosomes line up in the center of the cell? 

metaphase

All of the following may result from deforestation except one. Select the exception. 

  

Long-term improvement in the standard of living in less developed countries occurs.

 

During crossing-over

  

chromatids exchange segments of genetic material.

 

An adaptation ________. 

  

may be behavioral, physiological, or morphological

 

Geographic isolation can lead to speciation, and when it does, the speciation is called ________. 

allopatric

Changes in single nucleotides on DNA are called _______. 

  point mutations

 

The study of amphibians and reptiles is known as _______. 

herpetology

For each spermatogonium that undergoes meiosis and spermatogenesis, ________ functional sperm are produced. 

4

Genetic drift is most likely to have noticeable effects in ________. 

  

small, isolated populations

 

_________ characteristics and structures evolve between species because these species share a common ancestry. 

Homologous

Meiosis is represented as _______. 

  2n -> n

Crocodilians and some turtles do not have sex chromosomes; sex is determined by 

  

incubation temperature during development.

When individuals of an intermediate phenotype are at a relative disadvantage within the population, _______ selection is occurring. The example given in your book is type I and II male plainfin midshipman.

disruptive

One of the assumptions of the Hardy-Weinberg theorem is that ________. 

  

mating within the population is random

 

An organelle that is used for storage and internal transport, serves as a site for attachment of ribosomes, and make steroids, is the ________. 

endoplasmic reticulum

 

A/An ________ can be defined as a sequence of bases in DNA that codes for the synthesis of one polypeptide. 

gene

Following a cut or scrape, which process repairs your skin? 

mitosis

Water molecules move through selectively permeable membranes from areas of high concentration of water to areas of lower concentration by _________. 

osmosis

According to Charles Darwin, organic evolution is "descent with modification," which simply means ________. 

populations change over time

 

Synapsis occurs during what stage of meiosis? 

prophase I

Cells placed in this type of solution will shrivel. 

hypertonic

Which of the following would not be a good practice in the conservation of endangered species? 

Introducing nonnative species into ecosystems to serve as enhanced food sources.

Which of the following is *not* a main point in Darwin's theory?

All organisms have far less reproductive potential than first thought.

In a human population carrying the gene for sickle-cell anemia, and exposed to malaria, several genotypes persist in a ________. 

balanced polymorphism

When the Hardy-Weinberg equilibrium is achieved, evolution ________. 

does not occur

When cells such as white blood cells of a vertebrate engulf bacteria, the membrane transport mechanism used is ________. 

phagocytosis

 

The linear form of RNA that is responsible for carrying a set of genetic instructions into the cytoplasm is ________. 

mRNA

The ability of a membrane to regulate passage of materials into and out of a cell is called ________. 

selective permeability

The founder effect is a type of _________________.

genetic drift

Blood is classified as a/an _______ tissue. 

connective

Alleles are _______. 

alternate forms of a gene

The evolution of a number of new characteristics from an ancestral form is called _________ and results from _____________.

microevolution; extinction of one of two closely related species

Active transport ________.

uses cellular energy to move molecules from lower to higher concentrations

The sequence AGATCT on the template strand of DNA would lead to the production of an mRNA strand with the sequence ________.

UCUAGA

In birds, males (ZZ) are considered the ____________ sex because they have 2 sex chromosomes that are the same.

homogametic

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In DNA replication, because each new strand contains half of the original strand, this process is said to be ________.

semiconservative

 

In his observations of the tortoises on the Galápagos Islands, Darwin concluded that ________.

where vegetation was sparse, long-necked tortoises were favored because they could reach higher to get their food

The simplest organization of matter that exhibits the properties of life is the ________.

cell

A student carried out a cross between two flies. The male fly was heterozygous with wild-type wings while the female had vestigial wings. The offspring expected from this cross will

include flies with wild-type wings and vestigial wings in a ratio of 1:1

The synthesis of proteins at ribosomes, based on the genetic information contained in mRNA, is called ________.

translation

For each germ-line cell that goes through oogenesis, ________ functional egg(s) is/are produced.

one

The type of tissue that covers or lines structures is ________.

epithelial tissue

 

A human with the genotype XXY is a genetic ________ with ________ syndrome.

male; Klinefelter

Epigenetic modifications

affect gene expression.

In humans, the diploid number of chromosomes is

46

The surface to volume ratio of a cell limits ________.

the size a cell may reach

The "cell coat," made of surface carbohydrates and portions of proteins, is called the ________.

glycocalyx

 

Mendel's principle of segregation implies that the two members of an allele pair

are segregated pairwise.

Different ________ sizes/shapes of Darwin's finches are evidence that over time, finch species adapted to different food sources on the islands. 

beak

Humans with the genotype XO are _________ with ____________ syndrome. 

females; Turner

Different finch species have beaks of different sizes and shapes.  What do these beak differences tell us?

Different beak shapes are evidence that over time, finch species adapted to different food sources on the islands.

Jean Lamarck proposed a theory of evolution involving ________.

inheritance of acquired characteristics

 

During interphase

hereditary material duplicates itself.

 

During anaphase of mitosis, ________.

daughter chromosomes are moved to opposite poles of the cell

 

Survival of human babies is greatest for babies with an intermediate birth weight. Human birth weight is an example of ____________ selection.

stabilizing

 

______________ look different under a microscope.

Dimorphic

archaea are

all of the above

distinguish protostomes from deutrerostomes

developmental characters

in planarians the ____ are stem like cells that migrate to damaged areas

neoblasts

commerical bath sponges

demospongiae

shell of mollusk is secreted by the

mantle

tapeworm strobila is made of repeated units called

proglottoids

180 counterclockwise twist

torsion

unlike other mollusk, the __ have a closed circulatory system

cephalopods

aniamls __ includes all the bitoic and abitioc factors which animals lives

habitat

not entirely lined with mesoderm

pseudocoelomates

head defines what point

anterior

sponge defense

chemicals

according to the __, eukaruyotic cells may have orginated when

endosymbiont theory

adaptation of bivalves involved loss of

head

a __ taxon included the most recent ancestral species

monophyletic

modified veliger of some freshwater bivaules

glochidium

chollor of a choanocyte

filters food from the water

pop size that a particular enviroment can support

carrying capacity

root of all enviroemntal problems

human population growth

single large opening at the top of the spongocoel

osculum

sensory structures located in 8 notches around bell of jellyfish

rhopalia

“incipient” epitheral tissue layer

poriferans

varitey of living organisms in a ecosystem

biodiversity

radially symmertical organism lack a head

oral and aboral

amoung flatworms, when a digestive tract is present it has

a single opening, the mouth

chemoreceptors that aid in the location of food are dense in the __ of turbellarians

auricles

primary excretory product of aquatic gastropods

ammonia

how are schistomes unique

they have separate male and female indivduals

free living flatforms are classified in the class

turbellaria

a period of decreased metabolism and lowerd body temp occurs in some bats

torpor

most complex mollusks in class

cephalopoda

tapeworms lack

mouth and digestive tract

holdfast structure of a tapeworm

scolex

important character in sponge taxonomy is

material that composes the skeleton

space between the mantel and foot in a mollusk

mantle cavity

___ desribes how the parts of an organism are arranged around a point or axis

symmetry

ameboid cell

archeocytes

memebr of the cnidarn class __ never have a medusa

anthozoa

the ___ cavity of cnidarians serves in digestion and as a site for exchange of gases and wastes

gastrovascular

continous mulitinculeate layer, formed by cell fusion is called

glycocalyx

chinses liver fluke

eating raw fish