Genetics MCQ's Flashcards
The DNA moecule is composed of
Carbohydrate
Nucleotides
Amino acids
Fatty acids
Nucleotides
The base pair letters in DNA are
ABCD
PQRS
WXYX
ATGC
ATGC
The structures in the cytoplasm of cells that manufacture proteins using instructions from RNA are known as
Ribosomes
Mitochondria
Golgi apparatus
Vesicles
Ribosomes
Chromosomes are composed of
DNA
DNA plus histone protein
RNA
Histone protein
DNA plus histone protein
The stage of cell division in testes and ovaries that halves the chromosome number is known as
Meiosis
Apoptosis
Mitosis
Cirrhosis
Meiosis
The 23 pairs of human chromosomes presented in a chart format is known as the
Genotype
Phenotype
Chromotype
Karyotype
Karyotype
The pair of sex chromosomes are known as
AB
XX
YY
XY
XY
The sex genotype is determined by the
Maternal chromosomes
Paternal chromosomes
Maternal and paternal chromosomes
Neither maternal or paternal chromosomes
Paternal chromosomes
Gene complex variants are known as
Alleles
Nucleotides
Chromosomes
DNA
Alleles
Alleles for brown eyes are dominant. Alleles for blue eyes are recessive. If a mother is homozygous from brown eyes and father is heterozygous for blue eyes, what is the probability their children will have blue eyes?
100%
50%
25%
0%
0%
What would be the probability be of conceiving a blue eyed child if the mother was heterozygous brown eyed and gthe father was homozygous blue eyed?
100%
50%
25%
0%
50%
The term homozygous means
Both alleles in a pair are dominant
Both alleles in a pair are recessive
One allele is dominant and one allele is recessive
The alleles in a pair are the same
The alleles in a pair are the same
