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


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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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