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Biology Past Questions and Answers

Jamb 2006 Biology Questions

Question 11:
The mammalian vein which starts with and ends in a capillary network is the
  • A Pulmonary vein
  • B Mesenteric vein
  • C Renal vein
  • D Hepatic potal vein
View Answer & Explanation
Question 12:
In the transverse of a dicot sperm, the region lying between the endodermis and the vascular bundle is the
  • A Parenchyma
  • B Pericycle
  • C Phloem
  • D Hypodermis
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Question 13:
The two normal types of sex chromosomes are
  • A XXY and XYY
  • B XX and XYY
  • C XY and XXY
  • D XXand XY
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Question 14:
One advantage of variation in a species population is that individuals
  • A With favoured traits become dominant
  • B Easily reach their reproductive age
  • C Are easily recognised by mates
  • D Are better adapted to changes
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Question 15:
Mendel's second law of inheritance states that
  • A Alleles combine randomly
  • B Alleles segregates independently
  • C Alleles seperate predictably
  • D Chromosomes segregates independently
View Answer & Explanation