genetics Flashcards
Complete the following sentence: The two strands in a DNA molecule are held together by …
covalent bonds
hydrogen bonds
ionic bonds
peptide bonds
metallic bonds
hydrogen bonds
Complete the following sentence: The term haploid refers to cells that have …
23 chromosomes
46 chromosomes
2 nuclei
undergone mitosis
abnormal chromosomes
23 chromosomes
Which DNA base forms a complementary pair with adenine (A)?
Adenine (A)
Thymine (T)
Guanine (G)
Cytosine (C)
Uracil (U)
Thymine (T)
Which DNA base forms a complementary pair with adenine (A)?
Adenine (A)
Thymine (T)
Guanine (G)
Cytosine (C)
Uracil (U)
Thymine (T)
Complete the following sentence: The presence of an extra chromosome in a diploid cell is called…
trisomy
point mutation
nondisjunction
teratogenic transmission
mosaicism
trisomy
Complete the following sentence: The presence of an extra chromosome in a diploid cell is called…
trisomy
point mutation
nondisjunction
teratogenic transmission
mosaicism
trisomy
Complete the following sentence: Meiosis is a type of cell division that occurs in the…
bone marrow
reproductive organs
skin
lymphatic tissue
kidney
reproductive organs
Complete the following sentence: If an allele must be present on both the maternal and paternal chromosomes to be expressed within the phenotype of the offspring it is said to be…
polygenic
recessive
complementary
dominant
heterozygous
recessive
Complete the following sentence: If an allele must be present on both the maternal and paternal chromosomes to be expressed within the phenotype of the offspring it is said to be…
polygenic
recessive
complementary
dominant
heterozygous
recessive
Complete the following sentence: Genes are functional regions found within molecules of…
adenosine triphosphate (ATP)
ribonucleic acid (RNA)
proteins
deoxyribonucleic acid (DNA)
triglyceride
deoxyribonucleic acid (DNA)
Which of the following statements is TRUE?
The location of a gene on a chromosome is its locus
Autosomal recessive conditions are carried on the Y chromosome
Somatic cells are produced by meiosis
Dominant genes are only expressed in the heterozygous state
A permanent change in the DNA is called a codon
The location of a gene on a chromosome is its locus
Which of the following statements is TRUE?
The location of a gene on a chromosome is its locus
Autosomal recessive conditions are carried on the Y chromosome
Somatic cells are produced by meiosis
Dominant genes are only expressed in the heterozygous state
A permanent change in the DNA is called a codon
The location of a gene on a chromosome is its locus
Complete the following sentence: DNA contains…
a deoxyribose sugars.
three coding strands.
amino acids formed from hydrolysis.
metallic bonds between complementary bases.
Argon (Ar) and Uracil (U).
a deoxyribose sugars.
Complete the following sentence: DNA contains…
a deoxyribose sugars.
three coding strands.
amino acids formed from hydrolysis.
metallic bonds between complementary bases.
Argon (Ar) and Uracil (U).
a deoxyribose sugars.
Complete the following sentence: The complementary strand of the following DNA sequence ‘AAT AGG CCC’ would be …
‘TTA TCC GGG’.
‘GGG CCT ATT’.
‘AAT AGG CCC’.
‘UUG UTT AAA’.
‘GGC GAA TTT’.
‘TTA TCC GGG’.
