DAT-256-301

Question 1

most abundant RNA

Answer 1

r-RNA 80%

Question 2

least abundant RNA

Answer 2

m-RNA, turns over rapidly

Question 3

smallest of the RNA

Answer 3

t-RNA; transport amin acids to ribosomal site

Question 4

zygomycetes, basidiomycetes, lichen, ascomycetes

Answer 4

types of fungi

Question 5

amount of blood in average size adults

Answer 5

5 quarts

Question 6

alubumin

Answer 6

important for maintaining the bloods osmotic pressure

Question 7

stigma

Answer 7

sticky part of flower that catches pollen

Question 8

bonds between antibodies

Answer 8

disulfide

Question 9

blood clotting

Answer 9

involves a series of chain rxns in which fibrinogen is converted into fibrin

Question 10

fibrin

Answer 10

form a mesh that traps RBC to become a solid barrier to blood loss

Question 11

yields most energy

Answer 11

fat

Question 12

what transfers electrons to the ETC

Answer 12

FADH2 and NADH

Question 13

NADH yields ; each FADH2 yields

Answer 13

3 ATP; 2 ATP

Question 14

mullerian mimics

Answer 14

(bees wasps ) contain some yellow warning colors that alert predators not to attack

Question 15

batesian mimicry

Answer 15

deceptive mimicry; family of bees that resemble yellow bees but don’t sting at all.

Question 16

stem cells in the bone produce lymphocytes by

Answer 16

mitotic division

Question 17

two parts of immune system

Answer 17

antibody mediated immunity (regulated by production of B cell antibody production) and cell mediated immunity (regulated by the T cells (mature in thymus)

Question 18

emphysema

Answer 18

pathology marked by the destruction of alveoli

Question 19

in-vitro fertilization

Answer 19

fert between an egg and a sperm in a glass dish in the lab

Question 20

micro-injection

Answer 20

technique that involves directly injecting the sperm cell into an egg

Question 21

promoter region in eukaryotes which contain group of nucleotides is called a

Answer 21

TATA Box ; regions aren’t rich and AT

Question 22

promoter region in prokaryotes which contain group of nucleotides is called a

Answer 22

Pribnow box

Question 23

on and off switch control point for translation

Answer 23

operator

Question 24

operon

Answer 24

assemblage of operator, promoter, and structural genes

Question 25

5 classes of immunoglobins

Answer 25

IgD, IgA, IgM, IgE, IgG

Question 26

erythroblastosis fetalis

Answer 26

Rh- mother, Rh+ fetus(produce the Rh antigen)

Question 27

egg cell has how many chromosomes and chromatids

Answer 27

23 chromosomes, 23 chromatids

Question 28

small DNA binding proteins that allow DNA coiling are

Answer 28

Histones

Question 29

complement

Answer 29

a chemical defense system that works with the immune response and supplements the inflammatory response

Question 30

most breif mitotic stage

Answer 30

anaphase - centromeres spit and daughter chromosomes begin to seperate

Question 31

synapsis

Answer 31

occurs in prophase I of meiosis ; we see the pairing of homologous chromosomes .

Question 32

formation of new species due to geographical isolation

Answer 32

allopatric speciation

Question 33

sympatric speciation

Answer 33

if speciation occurs after ecological, genetic, or behavioral barriers arise within the same geographical boundary of a single population

Question 34

founder effect

Answer 34

a new pop arises because of a single individual or a few individuals causing a change in allele frequency

Question 35

protosomes

Answer 35

mollusk, arthropods, annelids; the opening of the first indentation becomes the mouth

Question 36

echinoderms and chordates

Answer 36

deutorosomes

Question 37

oncotic pressure vs. hydrostatic pressure

Answer 37

oncotic pressure pull fluid into capillary; hydrostatic pressure tends to push fluid out of a capillary

Question 38

inactive form of enzyme

Answer 38

zymogen

Question 39

cytochromes

Answer 39

group of heme containing proteins found in the ETC

Question 40

order of eras

Answer 40

Cenozoic (now) > mesozoic (dinosaurs) >paleozoic (plants)>precambrian (fungi )

Question 41

second messenger

Answer 41

cyclic amp; activates enzymes; initiates protein synthesis even alter membrane permeability