UHS MDCAT 2019 PAPER (PART 2) 1. Xerophytes have small thick leaves to: Limit water loss by reducing the surface area Limit water loss by increasing the surface area Help them float on water Help them survive in salty environment 2. Among followings which cellular organelle contains circular DNA similar to those found in bacteria? Ribosomes Nucleus Chloroplast Lysosomes 3. A person was married to his cousin and both are heterozygous for sickle cell anemia. Among their four kids, what will be proportion of affected homozygotes? 50% 100% 75% 25% 4. The route of urine excretion from kidney to outside of body Is: Kidney→ Urethra→ Urinary bladder→ Ureter Kidney→ Ureter→ Urinary bladder→ Urethra Urinary bladder→ Kidney→ Ureter→ Urethra Kidney→ Ureter→ Urinary→ Urethra→ Urinary bladder 5. The phase of mitosis in which sister chromatid move towards opposite poles: Prophase Telophase Metaphase Anaphase 6. The Plasmid pBR322 has antibiotic resistance genes for: Streptomycin Tetracycline and Doxycycline Doxycycline and Ampicillin Ampicillin and Tetracycline 7. The nitrogen containing bases in nucleotide are of two types; Purine and Pyrimidines; The purine bases are: Adenine and Thymine Adenine, Guanine and Cytosine Guanine and Cytosine Adenine and Guanine 8. The following flowchart depicts the steps of the Calvin Cycle. Which option according to you fits in as the correct answer of the missing step? Hydrogenase Oxaloacetate Pyruvate Ribulose bisphosphate 9. DNA polymerase enzyme for PCR is isolated from bacteria Thermus aquaticus because: It can be used again and again It can work at high speed It can withstand high denaturation temperature It can withstand low denaturation temperature 10. The type of energy reduced by the enzymes for biological reactions to occur is called the: light Energy Active energy Heat energy Activation energy Loading … Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
in question no 10
the type of energy reduced by the enzymes for biological reactions to occur is called ACTIVATION ENERGY
at here the correct answer is active energy which is wrong
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