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WorksheetsDischotomous keys, reproduction, heredity and genetics
Total questions: 55
Worksheet time: 1hrs 1mins
Name
Class
Date
1.
Which of the following characteristics will most likely be helpful in identifying a butterfly using a dichotomous key?
a)
Migrates north every spring
b)
hangs on branches
c)
flutters wings fast on hot days
d)
Wings have long extensions
2.
A dichotomous key for insects is given. To what order does an insect with two pairs of scaly wings belong?
a)
Coleoptera
b)
Heteroptera
c)
Diptera
d)
Lepidoptera
3.
An illustration and a dichotomous key are given. What is the correct classification for this organism?
a)
Class Insecta
b)
Order Amblygygi
c)
Order Araneae
d)
Order Scorpiones
4.
What step do we always start with when using dichotomous keys?
a)
1
b)
2
c)
3
d)
4
5.
When using a dichotomous key to identify organisms, what do we look at?
a)
physical features
b)
weather patterns
c)
environment
d)
diet
6.
What is the name of bird W?
a)
Certhidea
b)
Geospiza
c)
Camarhynchus
d)
Platyspiza
7.
What is a dichotomous key used for in science?
a)
To organize biomes
b)
Classify organisms
c)
Identify bacteria only
d)
None of these
8.
A student discovers an arachnid with a segmented abdomen, long legs, and a tail with no stinger. The student uses the dichotomous key below to identify it. Which arachnid has the student found?
a)
Whip Scorpion
b)
Wind Scorpion
c)
Daddy long legs
d)
Scorpion
9.
True or False: All babies from the same mom and dad are identical.
a)
True
b)
False
10.
True or false: Even though I look identical to my mother, I only have half of her DNA.
a)
True
b)
False
11.
How much of your DNA do you receive from your mother?
a)
25%
b)
50%
c)
75%
d)
100%
12.
How many alleles are there for each trait?
a)
1
b)
2
c)
3
d)
4
13.
How are dominant traits represented?
a)
capital letters
b)
lower case letters
c)
cursive letters
d)
numbers
14.
How are recessive traits represented?
a)
capital letters
b)
lower case letters
c)
cursive letters
d)
numbers
15.
In order to show a recessive traits, how many lower case letters do you need in your genotype?
a)
1
b)
2
c)
4
d)
6
16.
If T=Tall and t=short, and my genotype if Tt, what is my phenotype?
a)
tall
b)
short
c)
dwarf
d)
medium height
17.
What word describes this genotype: Bb
a)
homozygous dominant
b)
homozygous recessive
c)
heterozygous
d)
dominant
18.
If you are a boy, what percent of your genes did you get from your dad?
a)
25%
b)
50%
c)
75%
d)
100%
19.
Requires two parents
a)
sexual
b)
asexual
20.
creates genetically different offspring
a)
sexual
b)
asexual
21.
Requires only one parent
a)
sexual
b)
asexual
22.
Sexual Reproduction involves how many parents?
a)
1
b)
2
c)
3
d)
4
23.
Asexual Reproduction involves how many parents?
a)
1
b)
2
c)
3
d)
4
24.
In sexual reproduction the male produces ___ cells.
a)
Malex
b)
Quack
c)
Egg
d)
Sperm
25.
In sexual reproduction the female produces ___ cells.
a)
Femalex
b)
Quack
c)
Egg
d)
Sperm
26.
A white cat had a litter of kittens that were orange, grey, and black and white spotted. Is this the result of sexual or asexual reproduction? And how would you characterize the offspring listed above?
a)
Sexual reproduction with uniform offspring
b)
Asexual reproduction with diverse offspring
c)
Sexual reproduction with diverse offspring
d)
Asexual reproduction with uniform offspring
27.
Offspring are genetically identical to the one parent.
Is this the result of sexual or asexual reproduction?
And how would you characterize the offspring listed above?
Is this the result of sexual or asexual reproduction?
And how would you characterize the offspring listed above?
a)
Asexual reproduction with uniform offspring
b)
Sexual reproduction with diverse offspring
c)
Asexual reproduction with diverse offspring
d)
Sexual reproduction with uniform offspring
28.
Which type of asexual reproduction is taking place
A planarian is a non-parasitic flatworm. If a planarian was injured by a predator, it could re-grow its body parts. If the body parts were not eaten by the predator, the part could re-grow into a whole new planarian as well.
A planarian is a non-parasitic flatworm. If a planarian was injured by a predator, it could re-grow its body parts. If the body parts were not eaten by the predator, the part could re-grow into a whole new planarian as well.
a)
Budding
b)
Fission
c)
Vegetative propagation
d)
Regeneration
29.
This is when uniform offspring grow from a part of a parent plant. Parent plants sends out runners. Where the runner touches the ground, roots can grow. A new plant is produced even if the runner is broken apart Each new plant is uniform and identical to the parent.
a)
Vegetative propagation
b)
Regeneration
c)
Budding
d)
Fission
30.
This is when a new organism grows by mitosis and cell division on the body of its parent. The bud, or offspring is identical to the parent. The bud, when large enough, can break off of the parent and live on its own.
Examples of this include yeast, hydra and cactus
Examples of this include yeast, hydra and cactus
a)
Regeneration
b)
Vegetative propagation
c)
Fission
d)
Budding
31.
This occurs when an offspring grows from a piece of its parent. Examples include Sea Stars, Sea urchins, sea cucumber, sponges, and planarians
a)
Vegetative propagation
b)
Budding
c)
Regeneration
d)
Fission
32.
Cell division in prokaryotes that forms two genetically identical cells. DNA is copied and the cell begins to grow longer, pulling the two copies apart. The cell membrane pinches inward in the middle of the cell. Cell splits to form two new uniform, identical offspring. Examples of this include bacteria, Ecoli, pond critters
a)
Budding
b)
Fission
c)
Vegetative propagation
d)
Regeneration
33.
The offspring produced during asexual reproduction are...?
a)
small
b)
identical to the parent
c)
older than their parents
d)
24
34.
Sexual or Asexual?
a)
Sexual
b)
Asexual
35.
An allele whose trait always shows up in the organism when the allele is present.
a)
recessive allele
b)
dominant allele
c)
hidden allele
d)
present allele
36.
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
37.
having two of the same genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
38.
having two different genes for a trait (sometimes called hybrid).
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
39.
an organism's appearance or other detectable characteristic
a)
genotype
b)
phenotype
c)
genetics
d)
heterozygous
40.
What would the genotype be for this Punnett Square? B is dominant for brown hair.
a)
2Bb, 2bb
b)
2BB, 2Bb
c)
1BB, 2Bb, 1bb
d)
4Bb
41.
What would the phenotype be for the offsprings? T is dominant for tall pea plants
a)
50% tall, 50% short
b)
25% tall, 75% short
c)
100% tall, 0% short
d)
75% tall, 25% short
42.
What genotype would a child have to have in order to be left handed? R is dominant for right handed.
a)
rr
b)
Rr
c)
RR
43.
W=white hair
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair? Create a punnett square.
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair? Create a punnett square.
a)
none
b)
3/4
c)
1/2
d)
all
44.
In guinea pigs, the alleles for black hair(B) is dominant to the allele for brown hair(b). Two black-haired guinea pigs are crossed. One of the pigs is homozygous for black hair and one is heterozygous. What percentage of their offspring are expected to have black hair? Create a punnett square.
a)
25%
b)
50%
c)
75%
d)
100%
45.
The genotype of an organism describes the
a)
codons that make up the genes
b)
number of gene's on the chromosmes
c)
genetic make-up of a trait
d)
type of chromosomes in the nucleus
46.
Mark is a tall, 11 year old boy. He has a scar on his right cheek. He is intelligent and an excellent drummer. Which of his traits did he most likely inherit?
a)
height
b)
the scar
c)
his intelligence
d)
ability to play drums
47.
Two heterozygous (Tt)tall pea plants are crossed. Which describes their offspring?
Create a punnett square.
Create a punnett square.
a)
50% tall and 50% short
b)
75%tall and 25% short
c)
100%short
48.
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)
49.
father of genetics
a)
Gregor Mendel
b)
James Watson
c)
Dr. Robbins
d)
Francis Crick
50.
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
51.
A dog gives birth to 5 puppies. What percentage of the chromosomes does each puppy share with the mother?
a)
25%
b)
50%
c)
75%
d)
100%
52.
one set of instructions for an inherited trait
a)
heredity
b)
allele
c)
trait
d)
gene
53.
In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?
a)
rr
b)
R
c)
RR
d)
RR or Rr
54.
Which of the characteristics is a lion least likely to pass on to its offspring?
a)
fur color
b)
length of tail
c)
scars on leg
d)
body size
55.
If you cross 2 birds with genotype Gg how many possible genotypes are possible in the offspring
a)
1
b)
2
c)
3
d)
4
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