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Genetics Am I Ready Part 2
Test Description: Last part of the Am I ready worksheet: Karyotypes and vocabulary.
Instructions: Answer all questions to get your test result.
1) What gender is represented by the chromosomes XY?
A
both male and female
B
female
C
none
D
male
2) A picture of an organisms chromosomes is called
A
monohybrid cross
B
dihybrid cross
C
ultrasound
D
karyotype
3) What gender is represented by XX?
A
male
B
female
C
both male and female
D
no gender determined
4) Chromosomes 1-22 determine body characteristics and are called
A
sex chromosomes
B
karyotype
C
autosomes
D
crossing over
5) What is it called when only one chromosome from a pair is present. This usually results in organism death.
A
monosomy
B
trisomy
C
polysomy
D
homologous pairs
6) What is the name of chromosome pair 23 and it determines the gender of the organism
A
crossing over
B
autosomes
C
karyotype
D
sex chromosomes
7) What is it called when three chromosomes are present instead of a pair?
A
polysomy
B
monosomy
C
trisomy
D
homologous pairs
8) What genetic disorder is caused from trisomy on chromosome pair 21?
A
Down's syndrome
B
Klinefelder's syndrome
C
Turner's syndrome
D
no syndrome
9) The allele that is always expressed as the phenotype of an organism
A
dominant
B
recessive
C
trisomy
D
multiple allele
10) What is the name of a specific segment of DNA on a chromosome?
A
double helix
B
gene
C
crossing over
D
allele
11) The physical appearance of an organism is called the
A
genotype
B
heterozygous
C
homozygous
D
phenotype
12) What is it called when the tow alleles are the same in an organism
A
hemizygous
B
hybrid
C
homozygous
D
heterozygous
13) What is the name of the technique used to predict outcomes of a cross with only 1 trait?
A
monohybrid cross or punnett square
B
karyotype
C
dihybrid cross
D
ultrasound
14) What is the name of the allele that may be covered up even when it is present?
A
dominant
B
recessive
C
hybrid
D
crossing over
15) When the alleles of an organism are written as letters it is called the
A
genotype
B
homozygous
C
heterozygous
D
phenotype
16) When the alleles in an organism are different the organism is said to be
A
homozygous
B
heterozygous
C
genotype
D
phenotype
17) What is the name of the technique used to predict the outcome of a cross with 2 different traits
A
ultrasound
B
monohybrid cross/ punnett square
C
dihybrid cross
D
karyotype
18) What is the name of the allele that can cover other alleles
A
heterozygous
B
dominant
C
homozygous
D
recessive
19) What is the name for variations of a gene. Examples are blue eye color, brown eye color, green eye color.
A
gene
B
double helix
C
chromosome
D
allele
20) What is represented by the following chromosomes? III
A
trisomy
B
monosomy
C
homologous pairs
D
crossing over
*select an answer for all questions
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