ANP201 Past Questions & Answers
1: An individual which contains only one allele at the allelic pair is referred to as Answer: Homozygote
2: The specific allelic combination for a certain gene or set of genes is called
Answer: Genotype
3: The nitrogen base in DNA is
Answer: Thiamine
4: Ribose is the sugar found in
Answer: RNA only
5: Adenine, Guanine, Cytocine are nitrogen bases for DNA and RNA
Answer: True
6: A strand of DNA is made of four building blocks abbreviated as A, T, G, and C
Answer: True
7: Flow of information from DNA to RNA is called
Answer: Transcription
8: The informational DNA segments that make up genes are called
Answer: Exons
9: A mutation is a change in
Answer: DNA
10: Mutation happens for several reasons
Answer:True
11: DNA stands for recombinant DNA
Answer: True
12: An endonuclease is an enzyme that cuts duplex DNA in the middle
Answer: True
13: DNA is sometimes called the
Answer: the blue print of life
14: Nucleotides are also called bases
Answer: True
15: Genes are small segments of a long molecule called DNA
Answer: True
16: Most genes come in pairs and are made of strands of genetic material called
Answer: DNA
17: Genes are organized structure called
Answer: Chromosomes
18: DNA replication is semi-conservative
Answer: True
19: An animal whose hereditary DNA has been augmented by addition of DNA from a source other than parental germplasm is called
Answer: Transgenic animals
20: Artificial insemination technology use is still more generally associated with dairy cattle than other domestic animals
Answer: True
21: Haydock and Haneberg discovered the large-scale use of yeast in food industry
Answer: True
22: Fermentation to produce foods fermentation is the ancient biotechnological discovery
Answer: True
23: The advances in recombinant DNA technology have occurred in parallel with the development of genetic processes and biological variations
Answer: True
24: The invention of better microscopes allowed biologists to discover the basic facts of cell division and sexual reproduction in the
year
Answer: 1820’s
25: The discovery of certain traits showing up in offspring without any blending of parent characteristics was made by
Answer: Mendel
26: The specific allelic combination for a certain gene or set of genes is referred too as
Answer: Genotype
27: An allele whose expression is suppressed in the presence of a dominant allele is referred to as
Answer: recessive
28: A cross between parents that differ at a single gene pair is referred to as
Answer: Monohybrid
29: The cross of an F1 hybrid to one of the homozygous parents is referred to as
Answer: Back cross
30: The cross of any individual to a homozygous recessive parent is referred to as
Answer: Test cross 31: Nucleic acids were discovered in
32: DNA is sometimes called
Answer: Blue print of life
33: DNA is a long, but narrow string-like object
Answer: True
34: A one foot long string or strand of DNA is normally packed into a space roughly equal to a cube 1/millionth of an inch on a side
Answer: True
35: Information is stored or encoded in the DNA polymer by the pattern in which the four nucleotides are arranged
Answer: True
1: The genes for interdependently assorted traits are located on different
Answer: Chromosomes
2: A nucleic acid is a long molecule made up of smaller molecules called _________________
Answer: Nucleotides
3: A strand of DNA is made up of tiny building blocks. True or False ____________
Answer: True
4: If the DNA doesn’t encode anything, it is called ______________
Answer: Junk DNA
5: Three kinds of RNA are identified, the largest subgroup being_____________
Answer: mRNA
6: The size of rRNA molecules varies, but is generally less than a thousandth the size of_______________
Answer: DNA
7: The —————– (1980) define biotechnology as the application of biological organisms, systems or processes to the manufacturing and services
Answer: Spinks
8: Harrison made the beginning of animal tissue culture technique in —————————using frog tissue
Answer: 1970
9: —————-is referred to as an individual which contains only one allele at the allelic pair
Answer: Homozygote
10: ————— is referred to as flow of information from DNA to
RNA
Answer: Transcription
11: ———- are small segments of a long molecule called DNA
Answer: Genes
12: These number and order of the bases spell out the language known
as the —————–
Answer: Genetic code
13: Gametes are produced by a process called —————
Answer: Meiosis
14: A key feature of meiosis is the exchange of chromosome pieces
which occurs in the first division of this process, called
Answer: Recombination
15: ———— is the process where DNA makes a copy of itself.
Answer: Replication
16: Separation of a portion of the double helix takes place at a site
called
Answer: Replication fork
17: DNA replication is —————-
Answer: Semi conservative
18: ————————- is the code used to produce proteins.
Answer: DNA
19: The message encoded in RNA is read in three-letter words called —
—–
Answer: Codons
20: A cell’s protein synthesis takes place in organelles called ——
–
Answer: Ribosomes
21: Hereditary mutations are inherited from a ————
Answer: Parent
22: Somatic mutations that happen in a single cell early in embryonic development can lead to a situation called —–
Answer: Mosaicism
23: —————- are essential to evolution; they are the raw material of genetic variation
Answer: Mutation
24: Protein-coding DNA can be divided into ———–
Answer: Codons
25: Cloning —————————– can be done in unicellular microbes like E. coli, unicellular eukaryotes like yeast and in mammalian cells grown in tissue cultures
Answer: In vivo
26: .——————- are molecules of DNA that are found in bacteria separate from the bacterial chromosome
Answer: Plasmids
27: PCR is an abbreviation for ————–
Answer: polymerase chain reaction
28: DNA fragments of different sizes can be separated by an electrical field applied to a ————
Answer: Gel
29: The DNA from crime-scene evidence or from a reference sample is cut with something called ———-
Answer: Restriction enzyme.
30: ——– consists of recovery of eggs from the ovaries of the female then maturing and fertilizing them outside the body until they are ready for implantation into foster females.
Answer: in vitro
31: ————- has been used to introduce foreign genes into the genome or, alternatively, to knock out selected genes.
Answer: Genetic engineering
32: ————- technology now provides an alternative route for cell-based transgenesis in domestic species, offering new opportunities for genetic modification.
Answer: Nuclear transfer
33: ——— remains one of the most economical means of preventing
specific diseases.
Answer: Immunization
34: Recombinant bovine somatotropin (BST) is a genetically engineered synthetic analog of the hormone.
Answer: Natural growth
35: ———————– the sheep was created in Scotland in 1997 by the nuclear transfer technique
Answer: Dolly