fingerprint
Do twins have same DNA?
yes
what was the name of the first clone
Dolly the sheep
how many chromosomes do human have
46
What does PCR stand for?
Polymerase change reaction.
Which phrase is true for a DNA fingerprint? a. It cannot distinguish among siblings. b. It is a type of restriction map. c. It shows a person’s phenotype
It is a type of restriction map.
what is cloning?
a genetically identical copy of a gene
male have XX or Xy chromomsomes?
XY
What is the meaning of primer?
short segment of DNA that acts as the starting point for a new strand.
What is DNA fingerprint?
It is to identify people on a molecular level
Which of the following statements about polymerase chain reaction (PCR) is true?
a. produces RNA segments b. requires primers and nucleotides c. builds new polymerases
requires primers and nucleotide
Some restriction enzymes leave behind "sticky ends," or tails of
repeating bases. b. exposed bases. c. paired bases. d. restricted bases.
exposed bases.
Chose the name of the scientist who invented PCR?
Lewis Paster
Alexender Flaming
Kerry Mullis
Kerry Mullis
The pattern of bands on a DNA fingerprint shows the sizes of DNA fragments related to the
a. number of repeat sequences. b. order of genes on a segment of DNA.
number of repeat sequences.
During each PCR cycle, what happens to the number of copies of a DNA segment?
a. It stays the same. b. It doubles. c. It quadruples. d. It increases to 1 billion.
It increases to 1 billion.
Bacterial enzymes that cut the DNA of viruses are called
restriction enzymes
What are the 3 steps of PCR?
Separation
binding
copying
DNA fingerprinting can be used to
a. assess actual disease risk. b. prove a family relationship. c. find all recessive alleles. d. measure gene expression
prove a family relationship
What did Scientists use PCR primarily for?
Amplify DNA
What do the bands on a restriction map show?
sizes of DNA fragments
what separates the strands
heat