Genetics Am I Ready Part 2 Question Preview (ID: 21876)


Last Part Of The Am I Ready Worksheet: Karyotypes And Vocabulary. TEACHERS: click here for quick copy question ID numbers.

What gender is represented by the chromosomes XY?
a) female
b) male
c) both male and female
d) none

A picture of an organisms chromosomes is called
a) dihybrid cross
b) monohybrid cross
c) karyotype
d) ultrasound

What gender is represented by XX?
a) female
b) male
c) both male and female
d) no gender determined

Chromosomes 1-22 determine body characteristics and are called
a) autosomes
b) sex chromosomes
c) crossing over
d) karyotype

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

What is the name of chromosome pair 23 and it determines the gender of the organism
a) autosomes
b) sex chromosomes
c) crossing over
d) karyotype

What is it called when three chromosomes are present instead of a pair?
a) monosomy
b) trisomy
c) polysomy
d) homologous pairs

What genetic disorder is caused from trisomy on chromosome pair 21?
a) no syndrome
b) Turner's syndrome
c) Down's syndrome
d) Klinefelder's syndrome

The allele that is always expressed as the phenotype of an organism
a) dominant
b) recessive
c) multiple allele
d) trisomy

What is the name of a specific segment of DNA on a chromosome?
a) allele
b) crossing over
c) gene
d) double helix

The physical appearance of an organism is called the
a) genotype
b) phenotype
c) homozygous
d) heterozygous

What is it called when the tow alleles are the same in an organism
a) homozygous
b) heterozygous
c) hemizygous
d) hybrid

What is the name of the technique used to predict outcomes of a cross with only 1 trait?
a) dihybrid cross
b) monohybrid cross or punnett square
c) karyotype
d) ultrasound

What is the name of the allele that may be covered up even when it is present?
a) dominant
b) hybrid
c) recessive
d) crossing over

When the alleles of an organism are written as letters it is called the
a) genotype
b) phenotype
c) homozygous
d) heterozygous

When the alleles in an organism are different the organism is said to be
a) genotype
b) phenotype
c) homozygous
d) heterozygous

What is the name of the technique used to predict the outcome of a cross with 2 different traits
a) dihybrid cross
b) monohybrid cross/ punnett square
c) karyotype
d) ultrasound

What is the name of the allele that can cover other alleles
a) homozygous
b) heterozygous
c) dominant
d) recessive

What is the name for variations of a gene. Examples are blue eye color, brown eye color, green eye color.
a) allele
b) gene
c) chromosome
d) double helix

What is represented by the following chromosomes? III
a) homologous pairs
b) monosomy
c) trisomy
d) crossing over

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