Education Exams (Educ Elem) – Page 6

#100. What is the manifestation of the interaction between genotype and environment in Siamese cat. ?
A Its pointed and elegant look
B Appearance of dark fur nose, ears, paws and tail
C Being fond of people
D Presence of a long tail
Answer: Appearance of dark fur nose, ears, paws and tail
#101. What is usually being influenced by environment in inheritance?
A Sex-limited characteristics
B Phenotype
C Genotype
D Sex-linked traits
Answer: Phenotype
#102. What happens during DNA transcription?
A Transfer RNA delivers the appropriate amino acids to the ribosomes
B Ribosomal RNA combines with dozens of proteins to form a ribosome
C The information contained in the DNA of a specific gene is copied into messenger RNA.
D The base sequence of mRNA encodes the amino acid sequence of protein
Answer: The information contained in the DNA of a specific gene is copied into messenger RNA.
#103. What is the more recognizable term for condition Trisomy 21?
A Jacob syndrome
B Klinefelter syndrome
C Down syndrome
D Turner syndrome
Answer: Down syndrome
#104. A short female was found to have premature ovarian failure have extra folds of skin on the neck, swollen hands and feet, kidney defects an hearing loss. What chromosomal condition does she suffer form?
A Jacob syndrome
B Down syndrome
C Turner syndrome
D Klinefelter syndrome
Answer: Turner syndrome
#105. Which of the following cause Klinefelter syndrome?
A Two X chromosomes and Y chromosomes
B Two X chromosomes and Y chromosomes
C Extra copy of chromosome 21
D Two Y chromosomes and one X chromosomes
Answer: Two X chromosomes and Y chromosomes
#106. Some people [people from Hiroshima and Nagasaki, Japan were discovered to have cancer. To which may this be attributed?
A Radioactive Fallout from Atomic Bomb
B Ultraviolet radiation
C Chemical in tobacco
D X-rays
Answer: Radioactive Fallout from Atomic Bomb
#107. Which type of mutation happens when nucleotides are added or deleted by a number other than multiple of three?
A Deletion Mutation
B Substitution mutation
C Insertion mutation
D Frameshift mutation
Answer: Frameshift mutation
#108. The gene called Bt derived from bacterium bacillus damage the digestive tract of insect but not mammals. What is the genetically engineered trait of the crop possessing this gene?
A Resistance to herbicide
B Resistance to pest
C Altered ripening
D Resistance to disease
Answer: Resistance to pest
#109. Which of the following bio-engineered crops whose oil was made healthier for human consumption?
A Canola
B Coconut
C Corn
D Cotton
Answer: Canola
#110. What is/are the objective/s of the Human Genome Project?
  1. To determine what may genes can do
  2. To have an enormous impact on medical practice
  3. Appreciate our place in the evolution of life on Earth
  4. Help diagnose genetic disorder predisposition and to devise treatment in the future
A II and III only
B I, II, and III only
C I and II only
D I, II, III and IV
Answer: I, II, III and IV
#111. What disease is usually being diagnose by the Restriction Fragment Length Polymorphisms (RFLPs) analysis?
A Alzheimer disease
B Albinism
C Sickle-cell Anemia
D Congenital Heart Disease
Answer: Sickle-cell Anemia
#112. Which of the following is the BEST definition of evolutionary fitness?
A The measure of the contribution of a genotype to the gene pool of the next generation
B The ability to survive for a long time
C The relative health of each individual in the population
D The ability to mutate an individual’s DNA
Answer: The measure of the contribution of a genotype to the gene pool of the next generation
#113. Which type of natural selection is manifested in the occurrence of large or small beak sizes among seed crackers in the absence of medium-sized beaks?
A Stabilizing
B Directional
C Separation
D Disruptive
Answer: Disruptive
#114. Which of the following may counter the effects of natural selection?
A Genetic drift
B Mutation
C Sexual Dimorphism
D Gene flow
Answer: Gene flow
#115. Ten thousand years ago, cheetahs were very common in many areas. Today, just two isolated population live in South and East Africa, numbering only a few thousands animals. What genetic drift is being experienced by cheetahs?
A Bottleneck effect
B Founder effect
C Mutation
D Founder effect
Answer: Bottleneck effect
#116. Which evolutionary mechanism is a change in allele frequencies that occurs purely by chance and tends to eliminate alleles from a population?
A Hardy-Weinberg Equilibrium
B Migration
C Mutation
D Genetic drift
Answer: Genetic drift
#117. Which of the following are important water-soluble molecules and re very effective energy-yielding nutrients?
A Proteins
B Nucleic Acids
C Carbohydrates
D Lipids
Answer: Carbohydrates