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Genetics Review Part 2
Test Description: Genetics Review
Instructions: Answer all questions to get your test result.
1) (2) Who first described the principles of heredity?
A
Charles Darwin
B
Gregor Mendel
C
Robert Hooke
D
Reginald Punnett
2) (4) Homozygous purple flowers and white flowers were crossed and resulted in all purple offspring. What does this tell us about purple flowers?
A
Purple flowers are dominant over white.
B
Purple and white flowers show incomplete dominance.
C
White flowers are dominant over purple.
D
Purple and white flowers are co-dominant.
3) (6) The passing of traits from parents to offspring is known as
A
phenotype
B
heredity
C
genetics
D
genotype
4) (8) The 4 squares inside the punnett square represent
A
the possible offspring.
B
The second generation
C
the parents
5) (10) A homozygous tall plant is crossed with a short plant, where tall plants are dominant. Give all the possible phenotypes and genotypes of the offspring and the possibility of each occurring.
A
Pheno: 100% Tall, 0% Short - Geno: 0% TT, 100% Tt, 0% tt
B
Pheno: 75% Tall, 25% Short - Geno: 25% TT, 50% Tt, 25% tt
C
Pheno: 0% Tall, 100% Short - Geno: 0% TT, 0% Tt, 100% tt
D
Pheno: 50% Tall, 50% short - Geno: 50% Tt, 50% tt
6) (12) The genetic makeup of an organism (example: GG, Gg, gg)
A
homozygous
B
allele
C
phenotype
D
genotype
7) (16) The study of how traits are passed from parent to offspring is known as
A
genetics
B
recessive
C
heredity
D
dominant
8) (18) Genes carry information that determine our
A
pedigree.
B
chromosomes.
C
DNA.
D
traits.
9) (19) What is DNA made of?
A
Phosphate
B
Sugar
C
Base (ATCG)
D
All of the Above
10) (21) Where are genes located?
A
on chromosomes.
B
in the nucleus of prokaryotes
C
in the cytoplasm of cells.
11) (23) What makes up a gene?
A
Chromosomes
B
Traits
C
Tightly coiled up DNA
D
RNA
12) (25) If two parents are involved in reproduction and the offspring are genetically different, what type of reproduction is this?
A
Sexual
B
Asexual
13) (25) If 1 parent is involved in reproduction and the offspring are genetically identical (clones), what type of reproduction is this?
A
Asexual
B
Sexual
14) (27) Bacteria going through binary fission to create offspring is an example of
A
sexual reproduction
B
asexual reproduction
15) (29) Having genetically different offspring and more parental care are advantages of
A
asexual reproduction.
B
sexual reproduction.
16) (31) Which of the following is a similarity between sexual and asexual reproduction?
A
They both produce identical offspring.
B
They both have 2 parents.
C
They both pass genes from parent to offspring.
D
They both have 1 parent.
17) (33) What's the difference between sex cells and body cells?
A
Sex cells have double the number of chromosomes as body cells.
B
There is no difference.
C
Body cells have half the number of chromosomes as sex cells.
D
Sex cells have half the number of chromosomes as body cells.
18) (35) If a cell has 40 chromosomes, how many will it have after meiosis?
A
20
B
40
C
15
D
80
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