#140.
Which of the following is not a function of genes?
A
Undergo mutation
B
Store and transmit genetic information
C
Control the function of other (structural) genes
D
Copy or replicate itself
Answer: Control the function of other (structural) genes
#141.
Inbreeding depression in most reproductive traits in farm animals is caused by ______________.
A
Species
B
Out crossing hybridization
C
Parent offspring mating
D
Upgrading
Answer: Parent offspring mating
#142.
In the formula P(phenotype) = G (genetics) + E (environment), the following are the types of
gene that may be exploited by crossbreeding except.
A
Overdominance
B
Epistasis
C
Dominance
D
Additive gene effect
Answer: Additive gene effect
#143.
Small population size leads to ________________ because of chance variation or sampling
effects/errors.
A
serious genetic drift
B
random genetic drift
C
large genetic drift
D
small genetic drift
Answer: random genetic drift
#144.
The magnitude of inbreeding depression in inbred populations depends on ____________.
A
Frequency of heterozygotes before breeding
B
Dominance effects
C
Degree of coefficient of inbreeding
D
All of the above
Answer: All of the above
#145.
Duroc is a breed of __________________
A
Dairy cattle
B
Beef cattle
C
Swine
D
Goat
Answer: Swine
#146.
When a gene suppresses the expression of its allele, the former is called the dominant gene
while the latter is referred to as the ___________ gene
A
Homozygous
B
Structural
C
Regulator
D
Recessive
Answer: Recessive
#147.
It determines the sex of the individual.
A
DNA
B
Autosomes
C
sex chromosome
D
mating system
Answer: sex chromosome
#148.
It is the notation used to refer to the heterogametic sex chromosomes of a hen.
A
HH
B
XY
C
XX
D
ZW
Answer: ZW
#149.
It is the heterogametic sex in chromosomes.
A
N/A
B
Male
C
Female
D
Both
Answer: Male
#150.
Milk production in cows and egg production in quails are example of economically important
traits which are known as _______________________.
A
Maternal effect
B
Sex-influenced
C
Sex-limited
D
Maternal influenced
Answer: Sex-limited
#151.
Which of the following reproductive technology increases the reproduction rate in the bull, buck, boar,
or ram?
A
Cryopreservation
B
In vitro fertilization
C
Artificial insemination
D
Multiple ovulation and embryo transfer
Answer: Artificial insemination
#152.
Which of the following is not stated in the Mendel’s Law of Segregation?
A
Genes occur in pairs
B
Genes determine characters
C
Only one of the gene pair is transmitted by a particular gamete
D
Segregation and recombination is random
Answer: Genes determine characters
#153.
In a segment of deoxyribonucleic acid (DNA), adenine is an example of __________.
A
Amino acid
B
nucleotide
C
purine
D
pyramidine
Answer: purine
#154.
It is the term use in the gametogenesis in the cow.
A
spermatogenesis
B
heterosis
C
Fertilization
D
oogenesis
Answer: oogenesis
#155.
It is a segment of the DNA which determines the base sequence of nucleotide in the
messenger ribonucleic acid (RNA) that makes up the code for certain biological function.
A
Chromosome
B
genotype
C
gamete
D
gene
Answer: gene
#156.
It is the process of the union of the sperm and the egg to form a zygote which develops
as a new individual
A
mitosis
B
meiosis
C
Fertilization
D
gametogenesis
Answer: Fertilization
#157.
It is the process by which the germinal cells divide to produce haploid cells each
carrying only one-half of the genetic complement of the individual.