Only the inherited traits you can see from both parents

What will the result be if I have 2 heterozygous genotypes on a Punnett Square?

25% chance that the recessive trait will show

Which of the following statements is true?

Chromosomes are divided into genes

In a family, 1 sister has brown eyes, 1 has green eyes & 1 has hazel eyes. How is this possible?

A different egg & sperm combined for each sister

How are homozygous & heterozygous genotypes different?

Heterozygous has two different alleles for the same trait

How does genotype relate to phenotype?

Phenotype is part of the genotype

The passing on of traits from parents to offspring

Passed from parents to offspring

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Genetics & Heredity

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Questions 28

Answers

1
Every cell in a human has the same number of chromosomes except...
sperm cells
saliva cells
skin cells
nerve cells
2
What is a phenotype?
Only the inherited traits you can see from both parents
All the inherited traits from both parents - seen and hidden
Whether or not you are "good" at sports
Only the facial traits inherited from parents
3
What term is used to describe a phenotype where both alleles can be observed?
multiple alleles
polygenic inheritance
incomplete dominance
codominance
4
How many chromosomes do all human cells (except egg & sperm) have?
44 pairs
46
22 pairs
23
5
Which of the following is an example of codominance?
A grey cow
A black & white cow
A solid black cow
A solid white cow
6
What will the result be if I have 2 heterozygous genotypes on a Punnett Square?
75% chance that the recessive trait will show
100% chance that the dominant trait will show
25% chance that the recessive trait will show
50% chance that the recessive trait will show
7
A gene carries the _________________ for a trait
instructions
protection
equipment
materials
8
True or False? Only dominant traits can be homozygous.
False
True
9
Which of the following have you inherited from your biological parents?
Your intelligence
Your personality
Your weight
The shape of your blood cells
10
Which term describes multiple genes affecting the phenotype of 1 trait?
incomplete dominance
polygenic inheritance
codominance
blending inheritance
11
Which of the following is true about fingerprints?
They are part of your genotype
They are exactly the same for identical twins
They often match biological parents' fingerprints
They are created when you work with your hands
12
How many chromosomes are found in egg and sperm cells?
23
23 pairs
46
46 pairs
13
Which of the following would happen... There are 2 dominant alleles for the sperm & 2 recessive alleles for the egg?
25% recessive, 75% dominant
100% recessive
100% dominant
50% recessive 50% dominant
14
Which of the following statements is true?
Heredity & genetics are the same thing
Chromosomes are divided into genes
Codominance is a simple pattern of inheritance
All Punnett Squares have homozygous genotypes
15
In a family, 1 sister has brown eyes, 1 has green eyes & 1 has hazel eyes. How is this possible?
During pregnancy, the mom "wished for" a baby with brown eyes
A different egg & sperm combined for each sister
During pregnancy, the mom ate lots of green food to get a green-eyed baby
The same egg & sperm combined for all 3 sisters
16
True or False? All genes have only 2 alleles.
False
True
17
In this Punnett Square pictured below, AA represents
A homozygous genotype
A heterozygous genotype
Polygenic inheritance
Multiple alleles
18
How are homozygous & heterozygous genotypes different?
Homozygous has two different alleles for the same trait
Heterozygous has two different alleles for the same trait
Heterozygous can only show dominant traits
Homozygous can only show recessive traits
19
How does genotype relate to phenotype?
Phenotype is part of the genotype
Genotype has nothing to do with phenotype - they are completely separate
Genotype is only the physical traits
Phenotype is only the "inside" traits
20
What is shown on a Punnett Square?
chromosomes
genes
alleles
cells
21
Which of the following is considered a complex pattern of inheritance?
pedigrees
multiple alleles
Ratios
genotypes
22
When would genetics be used?
To study Earth
To study the weather
To study heredity
To study life on the planet
23
If I break down a strand of DNA, what would I find?
nucleus of a cell
genes
chromosomes
genetics
24
What is heredity?
The study of how traits are passed from parents to offspring
How DNA is organized
The ability to have a baby
The passing on of traits from parents to offspring
25
All ___________ contain DNA
nanoparticles
metal
atoms
cells
26
What is DNA bundled into?
genes
chromosomes
cells
alleles
27
The term "double helix" refers to
The type of cell that contains DNA
How many chromosomes are in a cell
The number of DNA strands in a cell
The shape of a DNA molecule
28
Inherited traits are
Dependent on diet
Acquired during an organism's lifetime
Free from mutations
Passed from parents to offspring

Genetics & Heredity Flashcards | StudBud