SINDH MDCAT 2017 PAPER ( PART 10 ) 1. Which of the following RNA sequences would be transcribed from the DNA sequence ATOCCTAGOACT AUGCCUAGGAC UACGGAUCCUG GCAUUCGAAGU UAGCGAUCCUG TACGGATCCTG 2. Human cells maintain concentration gradients across their plasma membranes, such that there is a high sodium concentration outside the cell and a high potassium concentration inside the cell. Suppose that within the call membrane are sodium “Leak” channels. These channels would allow sodium to Move into the cell by active transport Move into the cell by simple diffusion Move into the cell by facilitated diffusion Move out of the all by facilitated diffusion Move out of the cell by simple diffusion 3. Question 3-5 The hormone labeled X in the diagram is often used in over the counter diagnostic test to determine when ovulation has occurred. This hormone is: Progesterone Estrogen LH Testosterone FSH 4. Based on the peak levels of hormone X, on what day of the cycle is ovulation most likely to occur? Day 14 Day 28 Day 25 Day 12 Day 21 5. The hormone labeled V In the diagram is: Progesterone, secreted by the corpus luteum after ovulation has occurred Estrogen, secreted by the corpus luteum after ovulation has occurred Estrogen, secreted by the ovary alter ovulation has occurred Estrogen, secreted by the follicle before ovulation occurs Progesterone, secreted by the ovary after ovulation has occurred 6. Which of the following statement(s) Is/are correct regarding a nucleus? I. Stores wastes and other Substances II. Contains genetic material III. Helps In cellular transport system IV. Control Centre of the cell I and II only II and III only II and IV only I only III and IV only 7. When the tuft of flagella are present at both the ends in the structure of bacterial call, then the condition is known as: BitrIchous Lophotrichous Peritrichous Atrichous Amphitrichous 8. Cystic fibrosis patients lack a gene that codes for a transmembrane carrier of: K+ ions Ca^2+ ions Mg^2+ ions Na+ ions Cl- ions 9. Which features do animal cells share with plant cells? D A B C 10. Platyhelminthes means: Flat worms None of the above Segmented worms Round worms Loading … Pages: 1 2 3 4 5 6 7 8 9 10
