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7th grade Genetics

Total questions: 61

Worksheet time: 2hrs 56mins

Name
Class
Date
1.

What is an organism's physical representation of it's genotype?

a)

elle

b)

heredity

c)

dominant

d)

phenotype

2.

One set of instructions for an inherited trait

a)

sexual reproduction

b)

gene

c)

homozygous

d)

heterozygous

3.

Physical characteristics, shown by an organism, based on the allele combination

a)

traits

b)

punnett squares

c)

reproduction

4.

One of the alternative forms of a gene that governs a characteristic.

a)

reproduction

b)

allele

c)

punnett square

5.

The entire genetic makeup of an organism; also the combination of genes for one or more specific trait. (ex. Bb)

a)

genes

b)

traits

c)

genotype

d)

phenotype

6.

A graphic used to predict the results of a genetic cross.

a)

punnett square

b)

reproduction

c)

heterozygous

d)

homozygous

7.

An allele that is fully expressed whenever the allele is present in an individual.

a)

reproductive

b)

heterozygous

c)

heredity

d)

dominant

8.

Describes an allele that will be masked unless the organism is homozygous for the trait.

a)

recessive

b)

punnett square

c)

heterozygous

d)

allele

9.

When an organism has the same two alleles for a trait. (example: TT)

a)

homozygous

b)

heterozygous

c)

gene

d)

trait

10.

Structures in the nucleus made up of DNA and protein

a)

asexual reproduction

b)

chromosomes

c)

punnett squares

d)

finch

11.

When an organism has two different alleles for a trait; (example Tt)

a)

Homozygous

b)

heterozygous

c)

allele

d)

trait

12.

The passing of genetic material from parent to offspring.

a)

Heredity

b)

punnett square

c)

pelican

d)

sexual reproduction

13.

When the sex cells from 2 parents unite to produce offspring that share the traits from both parents.

a)

dominant

b)

sexual reproduction

c)

recessive

d)

asexual reproduction

14.

When one parent produces offspring that are genetically identical to that parent.

a)

asexual reproductive

b)

allele

c)

gene

d)

genotype

15.
Is AA a genotype or phenotype?
a)
genotype
b)
phenotype
16.
Is bb dominant or recessive?
a)
dominant
b)
recessive
17.
Squidward has light blue skin, and his genotype for this trait is Bb. Would Squidward be considered a purebred or hybrid for light blue skin?
a)
Purebred
b)
Hybrid
18.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
19.

What is a phenotype?

a)

The genetic make up (code)

b)

The physical trait

20.

The passing of genetic characteristics from parent to offspring.

a)

heredity

b)

trait

c)

gene

d)

allele

21.

Having two of the same genes for the trait (sometimes called purebred).

a)

homozygous

b)

hetrozygous

c)

protein

d)

chromosome

22.

Having two different genes for a trait (sometimes called hybrid).

a)

protein

b)

homozygous

c)

heterozygous

d)

genotype

23.
Magda is a tall, 11 year old drummer. She has a scar on her right cheek. She is good at swimming. Which of her traits did Magda most likely inherit?
a)
height
b)
the scar
c)
ability to swim
d)
ability to play drums
24.
An allele whose trait only shows up when no dominant allele is present.
a)
hidden allele
b)
dominant allele
c)
recessive allele
d)
present allele
25.
A single piece of coiled DNA found in the cells; contains genes that encode traits.
a)
gene
b)
chromosome
c)
trait
d)
DNA
26.
Complex molecule that carries genetic information that defines an organism's traits. It is stored in the nucleus.
a)
DNA
b)
protein
c)
RNA
d)
glucose nucleic acid (GNA)
27.

Cell reproduction - when one cell becomes two

a)

meiosis

b)

mitosis

c)

anaphase

d)

morph

28.

Different forms of a characteristic

a)

trait

b)

genetics

c)

purebred

d)

homozygous

29.

Makes proteins using directions from DNA

a)

nucleus

b)

organelles

c)

ribosomes

d)

vacuole

30.

The building blocks of cells that control your specific characteristics

a)

RNA

b)

Ribsosomes

c)

Protein

d)

Nucleus

31.

Produces 4 sex cells, sperm and egg

a)

Mitosis

b)

Meiosis

c)

Morph

d)

Zygote

32.

The letters that represent the different forms of a gene (dimples: D=present; d=absent)

a)

Mitosis

b)

Phenotype

c)

Chromosome

d)

Alleles

33.
What is the definition of Heredity?
a)
the persons genes
b)
the genes 2 people have
c)
genetics passed from the  parent to the offspring.
d)
the division of sex cells and body cells
34.
What is the definition of mitosis?
a)
The process that makes two daughter cells identical.
b)
cells split in three individual sex cells without duplicating DNA.
c)
the division of sex cells.
d)
Mrs. Carroll
35.
What is the definition of meiosis?
a)
The process that helps individual cells reproduce
b)
does not make body cells, but it makes sex cells
c)
body cells
d)
the division of genes
36.
What is the definition of Genotype (choose the BEST answer)?
a)
a persons genes
b)
genes
c)
our jeans
d)
genes that are inside of us
37.
What is the definition of Phenotype? (Be SPECIFIC!)
a)
chracateristics that don't show
b)
an organisms characteristics
c)
characteristics that are observable
d)
characteristics that aren't observable
38.
What is the definition of Homozygous?
a)
when an organism has 2 identical traits. 
b)
an organisms genes
c)
characterisitcs passed on from the parent to the offspring.
d)
different types of letters
39.
What is the definition of homozygous dominant?
a)
when an organism has 2 identical cells
b)
two dominant alleles
c)
two recessive alleles
d)
the relationship between alleles of one gene
40.
What is the definition of homozygous recessive?
a)
two recessive alleles
b)
two dominant alleles
c)
two capital letters
d)
a lower-case and upper-case letter
41.
What is the definition of Heterozygous?
a)
trait that shows
b)
two recessive alleles
c)
two dominant alleles
d)
an organism with 2 different alleles
42.
What is the definition of a Dominant trait?
a)
the alternative forms of genes
b)
trait that is there, but might not show
c)
trait that doesn't show
d)
trait that always shows
43.
What is the definition of a recessive trait?
a)
trait that shows
b)
trait that doesn't show
c)
trait that is there, but might show
d)
the alternative forms of genes
44.
What is the definition of allele?
a)
trait that is there, but might not show
b)
the alternative forms of genes
c)
the observable chracerisitcs of an organism
d)
the non observable characteristics of an organism
45.
What do 2 capital letters mean?
a)
Allele
b)
Heterozygous
c)
Recessive
d)
Dominant
46.
What do 2 lowercase letters mean?
a)
Allele
b)
Heterozygous
c)
Recessive
d)
Dominant
47.
Which one shows heterozygous?
a)
P.p
b)
Aa
c)
BB
d)
tT
48.
Which equation suits best with the following -
.cross a heterozygous with a homozygous dominant
.use the 8th letter of the alphabet  
. the dad is heterozygous and the mom is homozygous dominant
                 (READ CAREFULLY)
a)
Hh ❌ HH
b)
Tt ❌ TT
c)
HH ❌ Hh
d)
TT ❌ Tt
49.
Cross a heterozygous with a heterozygous and use the 13th letter of the alphabet?
a)
Ll ❌ ll
b)
Mm ❌ Mm
c)
Ll ❌ Ll
d)
lL ❌ lL
50.

blue eyes, curly hair

a)

genotype

b)

phenotype

51.

Tt, BB, rr

a)

genotype

b)

phenotype

52.

controls the trait; you only need one gene for the trait to show up in an organism

a)

dominant

b)

recessive

53.

the weaker trait; you need 2 genes for the trait to show up in an organism

a)

dominant

b)

recessive

54.

the different forms of a trait that make up a gene, R OR r

a)

allele

b)

dominant

c)

recessive

55.

purebred; the same gene pair

a)

homozygous

b)

heterozygous

56.

hybrid; a different gene pair

a)

homozygous

b)

heterozygous

57.

TT, tt

a)

homozygous

b)

heterozygous

58.

the father of genetics

a)

James Watson

b)

Robert Hooke

c)

Gregor Mendel

d)

Reginald Punnett

59.

a tool used to predict the results from crossing 2 sets of allelles

a)

microscope

b)

Punnett square

c)

Jawsome trapezoid

60.
Probability is the likelihood of an occurrence
a)
True
b)
False 
61.
Carries genetic information. Found in the nucleus.
a)
DNA
b)
Heredity
c)
Allele
d)
Chromosomes

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