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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
Gregor Mendel
B
Robert Hooke
C
Charles Darwin
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 and white flowers are co-dominant.
B
White flowers are dominant over purple.
C
Purple flowers are dominant over white.
D
Purple and white flowers show incomplete dominance.
3) (6) The passing of traits from parents to offspring is known as
A
heredity
B
genotype
C
phenotype
D
genetics
4) (8) The 4 squares inside the punnett square represent
A
the parents
B
The second generation
C
the possible offspring.
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: 0% Tall, 100% Short - Geno: 0% TT, 0% Tt, 100% tt
B
Pheno: 50% Tall, 50% short - Geno: 50% Tt, 50% tt
C
Pheno: 100% Tall, 0% Short - Geno: 0% TT, 100% Tt, 0% tt
D
Pheno: 75% Tall, 25% Short - Geno: 25% TT, 50% Tt, 25% tt
6) (12) The genetic makeup of an organism (example: GG, Gg, gg)
A
genotype
B
phenotype
C
homozygous
D
allele
7) (16) The study of how traits are passed from parent to offspring is known as
A
genetics
B
dominant
C
heredity
D
recessive
8) (18) Genes carry information that determine our
A
pedigree.
B
traits.
C
DNA.
D
chromosomes.
9) (19) What is DNA made of?
A
Base (ATCG)
B
Sugar
C
Phosphate
D
All of the Above
10) (21) Where are genes located?
A
on chromosomes.
B
in the cytoplasm of cells.
C
in the nucleus of prokaryotes
11) (23) What makes up a gene?
A
Chromosomes
B
RNA
C
Tightly coiled up DNA
D
Traits
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
sexual reproduction.
B
asexual reproduction.
16) (31) Which of the following is a similarity between sexual and asexual reproduction?
A
They both have 1 parent.
B
They both produce identical offspring.
C
They both have 2 parents.
D
They both pass genes from parent to offspring.
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
Body cells have half the number of chromosomes as sex cells.
C
There is no difference.
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
40
B
80
C
15
D
20
*select an answer for all questions
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