BIOLOGY Entrance Exam MUS Welcome to your BIOLOGY Entrance Exam MUS Name Email In a hypertonic environment: Water molecules move across the membrane at the same rate at both directions A cell loses water and shrinks Water enters a cell, causing it to swell and even to pop None Multiple allelism is related to: Chromosomal rearrangements Gene mutation Polyploidy None Which is NOT a component of the nucleus: Chomatin Nucleolus Golgi complex None Replication occurs: before cell division constantly during cytokinesis None The patient has 22 pairs of autosomes and one X chromosome (45, X0). This patient: is phenotypically male is phenotypically female has normal karyotype None What is the most important feature of prokaryotes? They can only multiply outside the host They have multiple chromosomes Prokaryote cells have no membrane organelles None Oxidative phosphorylation takes place in: ribosomes Golgi apparatus mitochondria None Transcription is a process in which: lysosomes are formed RNA is synthesized cell division is finished None Structural chromosomal mutations arise in case of: Lost, repeated or inverted fragment of a chromosome Extra or lost chromosomes in the karyotype Changes in a single gene nucleotide sequence None Somatic mutations are: Not inherited by the next generation Inherited but not expressed in the next generation Important for the existence of the population None In DNA nitrogen base thymine is complementary to: A protein RNA Adenine None Adenosine triphosphate (ATP) in eukaryotes is produced mostly by: Mitochondria Nucleus Endoplasmic reticulum None Which of the following combination of bases is not present in DNA? Cytosine and Guanine Uracil and Adenine Thymine and Adenine None Aneuploidy is a result of: Gene mutations Cell senescence and cell death Cell division errors None Genes occupying two different loci in one chromosome are called: alleles recombinant linked None How many different types of gametes can be produced by an organism with the genotype Aa? one two three None The AB blood group exhibits: complete dominance incomplete dominance co-dominance None Gene mutations are: dominant or recessive polyploidies chromosomal rearrangements None During the first meiotic division, homologous chromosomes exchange parts, a process called: crossing over translation replication None Which process occurs in the cytoplasm of the eukaryotic cell? glycolysis oxidative phosphorylation Krebs cycle None Time's up Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window
