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Genetics Study guide

Total questions: 48

Worksheet time: 2hrs 53mins

Name
Class
Date
1.

Different versions of the same gene. Ex- purple or white flowers

a)

Homozygous

b)

Gene

c)

Allele

d)

Pedigree chart

2.

How are alleles(genes) inherited?

a)

From the mother only

b)

From the father only

c)

From both parents

d)

Randomly from the environment

3.

What organism did Mendel study?

a)

pea plants

b)

onions

c)

mice

d)

cats

4.
___________________________ is the field of science that studies of how traits are passed on, or inherited.
a)
dominant traits
b)
ratio
c)
phenotype
d)
genetics
5.

Which of the following is a "true breeding"/"pure"?

a)

hh

b)

Rr

c)

Ww

d)

BB

6.

Which of the following is hybrid?

a)

TT

b)

tt

c)

GG

d)

Tt

7.

All of the following are homozygous genotypes EXCEPT _____.

a)

RR

b)

Ss

c)

tt

d)

UU

8.
A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance.  What percentage of the offspring will have pink (RW) flowers?
a)
0%
b)
25%
c)
50%
d)
100%
9.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
10.

Cross 2 heterozygous tall pea plants. Tall (T) is dominant to short (t). What fraction of the offspring do you predict will be tall?

a)

1/4

b)

2/4

c)

3/4

d)

4/4

11.

In the problem shown, the genotype of the missing parent must be (a)   .

Choose from the below words
BB
Bb
bb
12.

What pattern of inheritance is shown in this image?

a)

Codominance

b)

Incomplete dominance

c)

Complete dominance

13.

This is an example of ___________?

a)

Incomplete dominance

b)

Co-Dominance

c)

Complete dominance

14.
The physical appearance of the allele combination the offspring receives
a)
genotype
b)
homozygous
c)
phenotype
d)
dominant
15.

If a trait varies within a pair of identical twins, it is most likely caused by

a)

genetic traits

b)

inherited traits

c)

what you eat

d)

the environment

16.

If "B" represents brown hair, and "b" represents blond hair, what will the genotype be for a homozygous brown haired person?

a)

BB

b)

Bb

c)

bb

17.

A DNA molecule is shaped like a

a)

toilet

b)

cone

c)

ball

d)

spiraled ladder

18.

Most chromosomes are shaped like the letter

a)

Q

b)

W

c)

P

d)

X

19.

Created models of DNA

a)

Chargaff

b)

Franklin

c)

Watson and Crick

d)

Hershey and Chase

20.

Known as the "Father of Genetics"

a)

Mendel

b)

Griffith

c)

Avery

d)

Hershey and Chase

21.

Why is it important that DNA can be accurately copied?

4 lines
22.
What are the 4 nitrogen bases?
a)
adenine, thymine, cytoplasm, and guanine
b)
adenine, thymine cytosine, and guanine
c)
adenine, thymine, cytosine, and gylcerol
d)
adenine, thymine, cytosine, and glucose
23.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
24.

8. What is the name of the x-ray photo of DNA?


a)

DNA Pic

  

b)

Photo 51

 

c)

   DNA 51

  

d)

Photo 52

25.

What is DNA short for?

a)

Deoxyribonucleic acid

b)

Dioxynucleic acid

c)

Deoxynucleotide acid

d)

Dinucleic oxyacid

26.

Who took the famous Photo 51 that helped to discover the actual structure of DNA?

a)

Rosalind Franklin

b)

Watson and Crick

c)

Erwin Chargaff

d)

Thomas Edison

27.

RNA differs from DNA in that it:

a)

contains ribose sugar instead of deoxyribose

b)

is double-stranded instead of single-stranded

c)

contains thymine instead of uracil

d)

is found only in the nucleus

28.

The cell makes RNA through a process called:

a)

Transcription

b)

Translation

c)

Replication

d)

Mutation

29.

In RNA, adenine pairs with which base?

a)

Thymine

b)

Uracil

30.

Fill in the blank: RNA is generally ______-stranded.

a)

single.

b)

double.

c)

triple.

d)

quadruple.

31.

What does RNA stand for?

a)

Ribonucleic acid

b)

Ricenucleic acid

c)

Ribouncenucleic acid

d)

Rinucleic acid

32.

Using this DNA sequence ATA CGA GGA TTT, what is the complementary RNA sequence will be

a)

UAU GCU CCU AAA

b)

UAU GCU CCU TTT

c)

TAT GCT CCT AAA

d)

TAT GCT CCT TTT

33.

How is the genetic code read?

a)

In two-letter groupings

b)

In three-letter groupings

c)

In four-letter groupings

d)

In five-letter groupings

34.

Using the Genetic Code Table, what amino acid does the codon UGG represent?

a)

Histidine

b)

tryptophan

c)

Leucine

d)

Proline

35.

What would happen if the stop codon mistakenly had been made into a regular codon?

a)

The protein synthesis would stop prematurely.

b)

The protein would be longer than intended.

c)

The protein would be shorter than intended.

d)

There would be no effect on the protein.

36.

What is the central dogma of molecular biology?

a)

The process by which DNA is replicated

b)

The flow of genetic information from DNA to RNA to protein

c)

The structure of the DNA double helix

d)

The mechanism of enzyme action

37.

Which organelle is the location where protein is made?

a)

Ribosome

b)

Nucleus

c)

Cytoplasm

d)

Nucleotide

38.

What mutation has occurred here?

T-G-A-C-C-A

T-G-A-G-C-A

a)

Substitution

b)

Deletion

c)

Insertion

d)

Frameshift

39.

DNA molecule segment is : TTACGCAAG

The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.

a)

Substitution

b)

Deletion

c)

Insertion

d)

Inversion

40.

Identify the DELETION mutation form the following:

ATG CCA AAT

a)

ATG TCA AAT

b)

ATG CCT AAA T

c)

ATC CA AT

d)

ATG CCA AAT

41.
What molecule is shown in the double helix diagram shown?
a)
DAN
b)
RAN
c)
DNA
d)
RNA
42.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
43.

What type of mutation involves substituting a DNA base with a different base?

a)

point mutation

b)

frameshift mutation

c)

silent mutation

d)

chromosomal mutation

44.

Original DNA = TAC GAC TTG AAT

Mutated DNA = TAC GAC TTG AAT

What type of mutation has occurred?

a)

Chromosomal mutation

b)

Point mutation

c)

Frameshift mutation

d)

No mutation occurred

45.

What type of chromosomal mutation occurred?

a)

chromosomal insertion/duplication

b)

chromosomal deletion

c)

chromosomal inversion

d)

chromosomal translocation

46.

Mutations that involve parts of or all of

a chromosome

a)

Replication

b)

Deletion Mutation

c)

Chromosomal Mutation

d)

Transcription

47.

Even though, Sickle cell could benefit in some point, this condition a bad mutation in the genes because it affects the structure of the Red -Blood cells.

a)

False

b)

True

48.

is the result of mutations.

(a)  

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