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Bio 2nd Sem Final Review 2021-part 1

Total questions: 29

Worksheet time: 15mins

Name
Class
Date
1.
Which scientific evidence would show that two species of birds are closely related? 
a)
the two bird species have similar feather colors
b)
the two bird species eat many of the same insects
c)
the two bird species have similar DNA sequences
2.
The traits of populations in the forest ecosystem have changed over time. What caused the traits to change?
a)
lack of mutations
b)
natural selection 
c)
unlimited resources
3.
Why do frogs and fish in the stream have similar genes?
a)
they both compete for the same food
b)
they both are made of molecules
c)
they share a common ancestor
4.
Which process increases genetic variation among whale offspring?
a)
assembly of lipids
b)
synthesis of proteins
c)
fertilization of egg cells
5.

Elephants with tusks survive better during droughts. Elephants are sometimes born without tusks. Poachers kill elephants with tusks. How did the population evolve after poachers came?

a)

more baby elephants are born without tusks because mainly tuskless elephants are left to reproduce

b)

the same amount of baby elephants will grow tusks but then lose them to poachers.

6.

Which part of the cell cycle involves the actual dividing?

a)

Interphase

b)

Mitosis

c)

Cytokinesis

d)

G1 phase

7.

During which phase of mitosis do the chromosomes begin to separate?

a)

anaphase

b)

metaphase

c)

telophase

d)

interphase

8.

During transcription, this RNA molecule AUG CCA is formed from which DNA template?

a)

UAC GGU

b)

TAC GGT

c)

ATG CCA

9.

A dragon pair have 6 offspring, 4 are girl dragons, 2 are boy dragons. They have a new egg! What are the odds of having a girl baby dragon?

a)

50%

b)

75%

c)

100%

d)

25%

10.

What is a mutation?

a)

a different trait

b)

different alleles

c)

a change in the genetic material (DNA)

d)

cancer

11.
Moths, large wings (WW,Ww) are dominant to small wings (ww).  Yellow wings (YY, Yy) are dominant to white wings (ww).  What percent of the offspring of two moths with small white wings will also have small white wings? 
a)
100%
b)
75%
c)
50%
d)
25%
12.
What is shown in the picture?
a)
Independent assortment
b)
Anaphase
c)
Crossing-over
d)
Incomplete dominance
13.
Unlike mitosis, meiosis results in the formation of
a)
two genetically identical diploid cells
b)
two genetically different diploid cells
c)
four genetically identical haploid cells
d)
four genetically different haploid cells
14.
Organisms that have two identical alleles for a particular trait are said to be
a)
hybrid
b)
homozygous
c)
heterozygous
d)
dominant
15.
Unlike mitosis, meiosis results in the formation of
a)
diploid cells
b)
2N daughter cells
c)
haploid cells
d)
body cells
16.

Which type(s) of RNA is(are) involved in transcription?

a)

transfer RNA only

b)

ribosomal RNA and transfer RNA only

c)

messenger RNA, ribosomal RNA and transfer RNA

d)

messenger RNA only

17.
Which of the following is a nucleotide found in DNA?
a)
ribose, phosphate, uracil
b)
ribose, phosphate, thymine
c)
deoxyribose, phosphate, uracil
d)
deoxyribose, phosphate, cytosine
18.
Unlike DNA, RNA contains
a)
uracil
b)
adenine
c)
phosphate
d)
thymine
19.
Salmonberry leaf cells contain 14 chromosomes.  How many will be in a new leaf cell after mitosis?
a)
14
b)
7
c)
28
d)
46
20.

Which type(s) of RNA is(are) involved in translation?

a)

transfer RNA only

b)

ribosomal RNA and transfer RNA only

c)

messenger RNA, ribosomal RNA and transfer RNA

d)

messenger RNA only

21.

Which sentence best describes how a protein is made?

a)

code copied in the nucleus, protein made in the nucleus

b)

code copied in the nucleus, protein made on the ribosome

c)

code copied on the ribosome, protein made in the nucleus

d)

code copied from the mRNA, protein made in the nucleus

22.

How many codons are needed to specify 3 amino acids?

a)

12

b)

9

c)

6

d)

3

23.

Using the codon chart, find the amino acid for this mRNA codon AAU

a)

Stop codon

b)

Leucine

c)

Isoleucine

d)

Asparagine

24.

Is this trait (the family members with filled in shapes) recessive or dominant? Look at the 2nd (II) generation to get your answer.

a)

recessive

b)

dominant

25.

If this is a sex-linked trait (like Colorblindness) on the X chromosome, what phenotype is the mother in the 3rd (III) generation? Hint: She has one son with the trait and one daughter without the trait AND who did she inherit the trait from? Her mom or her dad?

a)

mom is colorblind, inherited from her dad

b)

mom is a carrier, inherited from her dad

c)

mom is a carrier, inherited from her mom

d)

mom is colorblind, inherited from her dad

26.

Sam's puppy after four weeks grew to be twice its original size. Which answer is the best answer?

a)

the puppy's body absorbed the food it ate

b)

the puppy's body cells grew larger as it got older

c)

parts of the puppy's body stretched out more

d)

the number of cells in the puppy's body increased

27.

Dragons have similar blood types as humans! What blood types would a heterozygous A blood type dragon and a type O blood type dragon offspring have?

a)

type A

b)

type B

c)

type O

d)

type A and type B

e)

type A and type O

28.

In pea plants R= round, r = wrinkled and Y = Yellow seed color, y = green seed color. What is the genotype of the offspring if one parent is rY and the other parent is ry?

a)

rY

b)

ry

c)

rrYy

d)

rryy

29.

In pea plants R= round, r = wrinkled and Y = Yellow seed color, y = green seed color. What is the phenotype of a plant that has a genotype Rryy?

a)

Round, yellow

b)

Round, green

c)

Wrinkled, yellow

d)

Wrinkled, green

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