Cp Biology 2 Final Exam Part A
- 1.If a pea plant were homozygous recessive for height, how would its alleles be represented?
- A.
Tt
- B.
TT
- C.
Tt
- D.
TT
- 2.When an organism has two alleles at a particular locus that are different, the organism is called
- A.
Purebred
- B.
Dominant
- C.
Heterozygous
- D.
Recessive
- 3.Hair color and eye color are examples of a person's
- A.
Recessive traits.
- B.
Phenotype.
- C.
Genotype.
- D.
Dominant traits.
- 4.Mendel's second law of genetics, the law of independent assortment, is one explanation of the
- A.
Random fertilization of gametes.
- B.
Final stages of gametogenesis.
- C.
Greater strength of dominant alleles.
- D.
Genetic variation within species.
- 5.Any of the alternative forms of a gene that occurs at a specific place on a chromosome are known as ___.
- A.
Genes
- B.
Alleles
- C.
Chromosomes
- D.
Recessive traits
- 6.A chart or "family tree" that tracks which members of a family have a particular trait is called a ___.
- A.
DNA sequence
- B.
Punnett square
- C.
Genetic linkage
- D.
Pedigree
- 7.___ studied traits of pea plants and discovered the two fundamental laws of genetics.
- A.
Mendel
- B.
Watson and Crick
- C.
Mack
- D.
Einstein
- 8.___ is a pattern of inheritance in which the gene for a trait is located on the X-chromosome, thereby creating disorders that are much more common in males than females.
- A.
Incomplete dominance
- B.
Co-dominance
- C.
Multiple allele
- D.
Sex-linked
- 9.In humans, a ___ cell has ___ chromosomes.
- A.
Haploid ... 46
- B.
Haploid ... 23
- C.
Diploid ... 50
- D.
Diploid ... 23
- 10.A form of nuclear division that divides a diploid cell into haploid cells and produces gametes is known as ___.
- A.
Mitosis
- B.
Meiosis
- C.
Cellular regeneration
- D.
Binary fission
- 11.A cell that has two copies of each chromosome is said to be ___.
- A.
Diploid
- B.
Haploid
- C.
Triploid
- D.
A gamete
- 12.A female gamete ___.
- A.
Is produced in the testes.
- B.
Is called an ovum or an egg cell.
- C.
Is called a spermatocyte.
- D.
Is called a polar body.
- 13.A(n) ___ involves the insertion or deletion of a single base in a DNA molecule.
- A.
Frameshift mutation
- B.
Point mutation
- C.
Translocation
- D.
Mutagen
- 14.Each set of three nucleotides on mRNA coding for an amino acid is referred to as a(n) ___.
- A.
Codon
- B.
Anticodon
- C.
Ribosome
- D.
Base pair
- 15.Messenger RNA is formed in the process of ___.
- A.
Translation
- B.
Transcription
- C.
Replication
- D.
Mutation
- 16.The process by which a DNA molecule is copied is ___.
- A.
Transcription
- B.
Translation
- C.
Replication
- D.
Mutation
- 17.Watson and Crick, with the help of Rosalind Franklin, were the first to suggest that DNA is ___.
- A.
A short molecule
- B.
A protein molecule
- C.
The shape of a double helix
- D.
The genetic material
- 18.Which DNA sequence produced an mRNA strand with the sequence AGUACA?
- A.
UCAUGU
- B.
TCATGT
- C.
GUACAG
- D.
CAGTAC
- 19.Which of the following is a pair of complementary bases?
- A.
Cytosine and cytosine
- B.
Adenine and guanine
- C.
Thymine and adenine
- D.
Thymine and ctyosine
- 20.There are literally hundreds of thousands of different organic molecules. Which statement best explains how this is possible?
- A.
Elements can make an unlimited number of chemical bonds.
- B.
Carbon is unique in that it can make four chemical bonds.
- C.
Carbon can make twenty bonds to other carbon atoms.
- D.
Organic molecules are acidic.
Questions: 30 | Attempts: 759 | Last updated: Jul 1, 2021
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