SECTION A {20 MARKS)
QUESTION1
[10]
Evaluate the statements in each numbered section and select the most appropriate
answer or phrase from the given possibilities. Write the appropriate letter next to the
number of the statement/phrase.
1.1 The following cells all stem from the myeloid progenitor except:
(1)
A) Neutrophils
B) Lymphocytes
C) Platelets
D) Megakaryocytes
1.2 Identify the term in which bone marrow becomes sole site for haemopoiesis? (1)
A) First few weeks of gestation
B) First few weeks post-natal
C) 2-3 moths pre-natal
D) 6-7 months post-natal
1.3 Describe a pro-normoblast:
(1)
A) 14-25um big, with 1:8 N:C ratio, 1-2 nucleoli, deep blue cytoplasm
B) 12-17um, 75% nucleus, 1-2 nucleoli, blue cytoplasm with reddish tint
C) 10-15um, 25-50% nucleus, no nucleoli, nucleus eccentric location, blue-
grey cytoplasm
D) 10-15um, 25% nucleus, pyknotic nucleus, blue-grey nucleus
1.4 Which of the following cells are not part of the bone marrow stroma:
(1)
A)
Adipocytes
B)
Fibroblasts
C)
Erythroblast
D) Macrophage
1.5 Bending twisted chain into a 3 dimensional "pretzel" shape describes the:
(1)
A)
Primary HB structure
B) Secondary HB structure
C) Tertiary HB structure
D) Quaternary HB structure
2