a change in an organism’s DNA.

Present day giraffes have long necks because:

their ancestors adapted to have long necks over time.

If two plants reproduce sexually, what would the resulting baby plant look like?

The baby plant will be a combination of both parents

Hereditary information passed on to offspring.

Why do squirrels from the same litter grow up to be different sizes?

Eat different amounts of food and inherited different genes.

Where do you get your personality?

From both inherited traits and environmental.

Where are genes found?

They are part of DNA in the cell nucleus.

What is a dominant gene?

A trait that always appears when present.

What happens with cross pollination?

pollination with different plants

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Genetics and Heredity

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Review for Quiz 2 #geneticsgo

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Questions 32

Answers

1
How many chromosomes pairs do humans have?
46 pairs
23 pairs
80 pairs
15 pairs
2
Mutations are always
bad
a change in an organism’s DNA.
neutral
good
3
What does DNA stand for?
Denominater of Numerous Alleles
Dominant Nuclear Acid
Daily Nursing Applejuice
Deoxyribonucleic acid
4
Present day giraffes have long necks because:
their neck length increases their body temperature.
they stretch them to reach the trees for food.
their neck length increases their speed.
their ancestors adapted to have long necks over time.
5
A genotype is
Not a word at all
A physical apperance
Two alleles
A made-up word for gene
6
Alleles are
Dominant
Recessive
Acid
Both Dominant and Recessive
7
If two plants reproduce sexually, what would the resulting baby plant look like?
The baby plant will be a combination of both parents
If the baby plant is male, it will look like its father.
If the baby plant is female, it will look like its mother.
Plants never reproduce sexually.
8
DNA is found in the nucleus and are rod-like structures of varying size and shape called ___.
double helix
alleles
traits
chromosomes
9
Who is considered the father of genetics?
James Watson
Charles Darwin
Francis Crick
Gregor Mendel
10
Alleles determined
The color of the eyes
The shape of the nose
Your eye color
All of the above
11
What is a gene?
It is how we get our energy.
Hereditary information passed on to offspring.
It is the genetic make up of all cells.
It is the same as an allele.
12
Which of these is a learned trait?
tadpoles turning into frogs
reading
Straight hair
skin color
13
Why do squirrels from the same litter grow up to be different sizes?
Only because they want to be different sizes.
Eat different amounts of food and inherited different genes.
Only because they eat different amounts of food.
Only because they inherited different genes.
14
Which word is a synonym to heterozygous?
Purebred
Irregular
Regular
Hybrid
15
Where do you get your personality?
None of the above
From both inherited traits and environmental.
Only from inherited traits.
Only from environmental traits.
16
What are genes?
A double helix
Food
A code of DNA
The study of Genetics
17
A phenotype is
Two alleles
A made-up word for gene
Not a word at all
Physical appearance
18
Which of the following human traits is not a polygenic trait?
skin color
fast runner
eye color
height
19
Crossing over takes place during________.
linkage
meiosis
segregation
mitosis
20
Which of the following human traits is not a polygenic trait?
eye color
skin color
ABO blood type
height
21
What is the study of heredity?
DNA
Hereditology
Genetics
Biology
22
Where are genes found?
They are part of DNA in the cell nucleus.
In the allele.
In the ribosome.
In the mitochondria of the cell.
23
Polygenic traits probably include _________.
skin color
all of the above
hair texture
height
24
If a father have type A blood and the mother has type AB, which type would the child NOT have?
A
B
AB
O
25
Homozygous dominants are represented with a
Lower case letter
Capital letter
Hair color
Roman numeral
26
Color blindness, a sex linked trait, appears more often in __________ than in ______________.
males, females
dogs, cats
females, males
neither
27
The process of pollen moving from one to another flower is ___.
cross-pollination
self-pollination
multiple alleles
dominant factors
28
Which one is NOT an inherited trait?
curly or straight tails in pigs
birds laying eggs
dogs shaking hands
the color of fur
29
The inheritance of human blood types is controlled by __________ alleles.
different
multiple
one
same
30
What is a dominant gene?
A trait that appears when there isn't a dominant gene.
A gene that sometimes appears as a trait.
A trait that always appears when present.
The trait that always comes from the dad.
31
Which term means "same alleles?"
Homozygous
Heterozygous
Hybrid
There is no term
32
What happens with cross pollination?
the pollination occurs with only red flowers
cross involving one character
pollination of only one plant
pollination with different plants

Genetics and Heredity Flashcards | StudBud