DNA-Introduction
Presentation
•
Biology
•
10th - 11th Grade
•
Hard
Standards-aligned
Anonymous Anonymous
Used 8+ times
FREE Resource
10 Slides • 22 Questions
1
Deoxyribonucleic acid (DNA)
Introduction
2
3
4
5
6
Fill in the Blanks
Type answer...
7
Multiple Choice
DNA stands for
dinoxinuclear acid
deoxyribonucleic acid
deoxyribonucleic acid
dimethylnoroacetic acid
8
Multiple Select
The rails of the DNA ladder are made of ________ and _________.
sugars
nitrogen bases
phosphates
nucleic acids
9
Multiple Select
The rungs of the ladder are made of __________
sugars
phosphates
nitrogen bases
nucleic acids
10
Multiple Choice
The building blocks of DNA are
nucleic acids
sugars
nitrogen bases
nucleotides
11
Multiple Select
Nucleotides are made of ________, _______, and ________.
sugars
nucleic acids
phosphates
nitrogen bases
12
Multiple Select
How many nitrogen bases are there in DNA?
1
2
3
4
5
13
Multiple Select
Which of the following are nitrogen bases found in DNA?
Adenine
Guanine
Uracil
Thymine
Cytosine
14
Multiple Select
In base pairing rules
A binds with G
T binds with A
C binds with T
G binds with C
15
Multiple Choice
What type of bond holds the base pairs together in DNA?
Covalent bond
Ionic bond
Hydrogen bond
16
Multiple Choice
What type of bond holds the rails of the DNA together?
Covalent bond
Ionic bond
Hydrogen bond
17
Multiple Choice
Which bond is strongest?
Covalent bond
Ionic bond
Hydrogen bond
18
Multiple Choice
Which bond is weakest?
Covalent bond
Ionic bond
Hydrogen bond
19
SNPs
pronounced "snips"
Single nucleotide polymorphism
"Poly-" : Many
morphisms: different forms, variations
20
21
Multiple Choice
How many base pairs are in the human genome?
1 million
2 million
1 billion
3 billion
22
Multiple Choice
How many SNPs are in the human genome?
1 million
10 million
1 billion
3 billion
10 billion
23
Multiple Choice
True or false. Most SNPs provide observable differences in people
True
False
24
Multiple Choice
The number of different SNPs between two individuals can tell us how related they are.
True
False
25
Heritability
Most phenotypic traits vary among the individuals in a population.
For many traits, an individual’s phenotype is
determined by environmental influences as well as their genetic makeup.
A measure of the degree to which
differences in a trait are the result of genetics is called heritability.
26
Heritability Values
Range from 0 to 1.
A heritability value of 1.0 means that 100% of the differences in a trait found among individuals in apopulation are caused by
genetic differences.
A heritability value of 0.0 means that 100% of the differences in a trait found among individuals in a population are caused by
environmental differences.
27
Multiple Choice
The measure of the relative frequency of an allele is called
relative frequency
allele percentage
allele frequency
relative percentage
28
Multiple Choice
A heritability of 1.0 means
100 % of the differences in a trait are due to genetics
100% of the differences in a trait are due to environmental factors
0% of the differences are due to environmental or genetic factors
100% of the differences are caused by both genetic and environmental factors
29
Multiple Choice
A heritability of 0.0 means
100 % of the differences are caused by genetic factors
100% of the differences are caused by environmental factors.
0% of the differences are caused by environmental factors or genetic factors
100% of the differences are caused by both genetic and environmental factors
30
Multiple Choice
In the activity today, it is stated that skin color has a heritability of .83. What would you conclude?
skin color is mostly genetic
skin color is mostly environmental
31
Multiple Choice
.83 heritability would also indicate that
83% of the differences between two individuals is due to genetics
17% of the differences between two individuals is due to environmental causes.
both are correct
32
Estimating heritability
Biologists estimate by comparing a trait among close relatives
The more similar the the expression of the trait is between close relatives, the more likely it will have high heritability
Therefore, studying identical twins is especially valuable
Deoxyribonucleic acid (DNA)
Introduction
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