B. Hepatic portal vein. D. Renal vein.
11. The blood serum of a universal donor contains
A. Antigens A.
C. Neither antigens A or B.
B. Antigens B.
D. Both antigens A and B
12. Which one of the following events does not occur following the contraction of the
ventricle in a mammalian heart?
A. Blood flows from ventricles into arteries.
B. The blood pressure increases in the aorta.
C. Atrio-ventricular valves open.
D. Arterial valves open.
2

Match the following terms and definitions. 1. transcription when genes are neither dominant nor recessive and display a blending of traits in the phenotype 2. translation converting the genetic code into the language of proteins 3. monohybrid cross genes that are carried on the x chromosome 4. incomplete dominance the transfer of genetic code from dna to an rna molecule 5. sex-linked genes the breeding of two organisms which differ in a single trait

Each trait of a plant is determined a. an allele b. one gene c. a pair of genes d. one dominant gene

Why are adults bigger than they were as children biology