PC705-Pathophysiology Test#1-
Genetics Test Questions All Solved
Correct 2025-2026 Updated
Genotype - Answer The exact allele composition a person has for a specific single-gene trait.
The composition of genes at a given locus.
Phenotype - Answer The outward appearance results of genotype and environment. An
observed expression of any given gene trait. Ex: hair or eye color
Situations where a person’s genotype and phenotype are the same.... - Answer -A genotypic
male XY matches a phenotypic male- with chromosomes, 22 pairs of autosomes and two sex
chromosomes.
-When there are two dominant gene alleles
-when there are two recessive gene alleles.
-Someone with AB type blood must have both the A and B alleles. The genotype must then be
AB. someone with the O blood type has neither A or B alleles. Their genotype must then be OO.
Ploidy - Answer The actual number of chromosomes present in a single-cell nucleus at
mitosis. Humans have 46 chromosomes divided into 23 pairs.
Haploid - Answer A complete set of one of each chromosomes. Representing the 23
individual chromosomes.
Diploid - Answer When the nucleus contains both pairs of all chromosomes. 23 pairs in all.
22 pair of autosomes and 2 sex chromosomes.
Polyploidy - Answer When the nucleus contains additional whole sets of chromosomes. Ex:
triploidy 3N (3 sets= 69 chromosomes) or Tetraploidy 4N (4 sets= 92 chromosomes)
Ova (eggs) and Spermatocytes (sperm) - Answer Each have a haploid (23) number of
chromosomes. One half of each pair.
Euploid - Answer When the cells nucleus has the normal number of chromosomes for the
, Karyotype - Answer An organized arrangement of all of the chromosomes within one cell
during the metaphase section of mitosis. Chromosomes are arranges two by two.
A kayrotype may be.... - Answer Euploid, Anuploid or polyploid.
Gender - Answer determined by sex chromosomes. A genotypical male has XY
chromosomes. A Genotypical Female has XX chromosomes.
Dominant gene alleles - Answer Will always express themselves when they are present and
are expressed even when the two gene alleles are different.
A & B blood type alleles - Answer Will always express themselves. Ex: present A and B blood
type alleles bothe being present with express as an AB blood type, whereas an A and an O
(recessive) blood type will be expressed as A blood type
Co-dominant - Answer When two dominant genes are present they are both expressed. ex:
A and B blood gene alleles will express as an AB blood type.
Recessive Traits - Answer Only expressed when there are no dominant genes present and
only when both gene alleles are the same. Ex: two O genes will express as an O blood type.
Alleles - Answer A pair of genes occupying a specific spot on a chromosome.
Locus - Answer The spot (location) where a pair of alleles are located on the chromosome.
Gametes - Answer Sperm and egg cells. (Haploid cells that have only one member of the
chromosome pair. 23 cells.
Somatic cells - Answer All cells other than gametes.
Meiosis - Answer A specialized type of cell division that reduces the chromosome number by
half, creating four haploid cells, each genetically distinct from the parent cell that gave rise to
them. Where the single haploid cells are formed from diploid cells.
Genetics Test Questions All Solved
Correct 2025-2026 Updated
Genotype - Answer The exact allele composition a person has for a specific single-gene trait.
The composition of genes at a given locus.
Phenotype - Answer The outward appearance results of genotype and environment. An
observed expression of any given gene trait. Ex: hair or eye color
Situations where a person’s genotype and phenotype are the same.... - Answer -A genotypic
male XY matches a phenotypic male- with chromosomes, 22 pairs of autosomes and two sex
chromosomes.
-When there are two dominant gene alleles
-when there are two recessive gene alleles.
-Someone with AB type blood must have both the A and B alleles. The genotype must then be
AB. someone with the O blood type has neither A or B alleles. Their genotype must then be OO.
Ploidy - Answer The actual number of chromosomes present in a single-cell nucleus at
mitosis. Humans have 46 chromosomes divided into 23 pairs.
Haploid - Answer A complete set of one of each chromosomes. Representing the 23
individual chromosomes.
Diploid - Answer When the nucleus contains both pairs of all chromosomes. 23 pairs in all.
22 pair of autosomes and 2 sex chromosomes.
Polyploidy - Answer When the nucleus contains additional whole sets of chromosomes. Ex:
triploidy 3N (3 sets= 69 chromosomes) or Tetraploidy 4N (4 sets= 92 chromosomes)
Ova (eggs) and Spermatocytes (sperm) - Answer Each have a haploid (23) number of
chromosomes. One half of each pair.
Euploid - Answer When the cells nucleus has the normal number of chromosomes for the
, Karyotype - Answer An organized arrangement of all of the chromosomes within one cell
during the metaphase section of mitosis. Chromosomes are arranges two by two.
A kayrotype may be.... - Answer Euploid, Anuploid or polyploid.
Gender - Answer determined by sex chromosomes. A genotypical male has XY
chromosomes. A Genotypical Female has XX chromosomes.
Dominant gene alleles - Answer Will always express themselves when they are present and
are expressed even when the two gene alleles are different.
A & B blood type alleles - Answer Will always express themselves. Ex: present A and B blood
type alleles bothe being present with express as an AB blood type, whereas an A and an O
(recessive) blood type will be expressed as A blood type
Co-dominant - Answer When two dominant genes are present they are both expressed. ex:
A and B blood gene alleles will express as an AB blood type.
Recessive Traits - Answer Only expressed when there are no dominant genes present and
only when both gene alleles are the same. Ex: two O genes will express as an O blood type.
Alleles - Answer A pair of genes occupying a specific spot on a chromosome.
Locus - Answer The spot (location) where a pair of alleles are located on the chromosome.
Gametes - Answer Sperm and egg cells. (Haploid cells that have only one member of the
chromosome pair. 23 cells.
Somatic cells - Answer All cells other than gametes.
Meiosis - Answer A specialized type of cell division that reduces the chromosome number by
half, creating four haploid cells, each genetically distinct from the parent cell that gave rise to
them. Where the single haploid cells are formed from diploid cells.
