DNA

Question 1

double helix

Answer 1

2 coiled DNA strands

Question 2

what is in a nucleotides unit

Answer 2

sugar molecule(deoxyribose), phosphate group, and a nitrogen containing base

Question 3

what are the four bases and how do they pair

Answer 3

Adenine-Thymine
Cystosine- guanine

Question 4

most body cells contain ____ and what is its function

Answer 4

nucleus– controls what goes on in the cell

Question 5

what is inside the nucleus and how many pairs

Answer 5

chromosomes and 23 pairs

Question 6

gene

Answer 6

a piece of a chromosome that dictates a particular trait

Question 7

DNA

Answer 7

genetic instruction

Question 8

A set of human chromosomes contains ____ copy of each of the _____ genes in the human ____

Answer 8

1; 30,000; genome

Question 9

What can be found in all body cells

Answer 9

WBC, saliva, hair

Question 10

WHat is our most abundant cell

Answer 10

buccal/ cheek cell

Question 11

RED blood cells have NO so what does it give

Answer 11

nucleus, blood type

Question 12

WHat type of blood is DNA from

Answer 12

WBC

Question 13

Who does our 23 pairs of chromosomes come from

Answer 13

23 from mom
23 from dad`

Question 14

What are the first 22 called

Answer 14

autosomes

Question 15

what is the last pair

Answer 15

gender

Question 16

XX mean

Answer 16

girl

Question 17

XY means

Answer 17

boy

Question 18

if extra on chromosome 23 means and who normally gives it

Answer 18

down syndrome; mom

Question 19

Locus

Answer 19

a location on the DNA

Question 20

alleles

Answer 20

variations of the same trait

Question 21

give an example of alleles

Answer 21

AA, Aa, aa

Question 22

dna typing

Answer 22

DNA converted to bands of patterns to look at closer

Question 23

uses of dna profiling

Answer 23

identify suspects, exonerate individuals, establish paternity

Question 24

Nuclear DNA

Answer 24

-fast , cost less, found in nucleus, constitutes 23 pairs from both parents , each cell contains one nuclei

Question 25

Mito DNA

Answer 25

found in cytoplasm, inherited only from mom’s side, each cell containes hundreds to thousands mito, can be found in skeletal remains –cost more takes longer

Question 26

codis

Answer 26

system that is US wide that has dna of criminals

Question 27

PCR

Answer 27

makes more copies of DNA samples

Question 28

STR

Answer 28

short tandem repeats of base pairs

Question 29

electrophoris is used

Answer 29

to find dad

Question 30

heavy strands __ but short strands __

Answer 30

stay on top; fall to the bottom

Question 31

AMEL codes

Answer 31

gender

Question 32

3 outcomes using STR

Answer 32

match: all look the same/match
exclusion: don’t have 13 loci match so eliminate
inconclusive: data doesn’t support if it is a match