(ii) 2 sources DNA; ref. sticky ends; complementary binding; H-bonds between bases; A to T and C to G; nicks in sugar-phosphate backbone sealed/AW; by ligase; max 4 [7] 37. (a) (i) two recessive alleles/homozygous recessive/two of allele 2; no, normal dominant/allele 1; homozygous same allele as affected child; 2 (ii) deletion removes base pairs; shorter/lighter, pieces of DNA move further in electrophoresis; towards anode; so allele 2, shorter/lighter, than allele 1; max 3 (b) 0
Since Barrington Brown is a recessive gene. If only one copy was present it should be masked by the dominant non- Barrington copy. This is part of the problem when interpreting reports that use an old, non- standard genetics notation! ba - Barrington Brown Locus (unverified) Genotype Description Phenotype Cat unaffected - i.e. Ba/Ba Homozygous - Non Barrington Brown Black/Brown/Chocolate etc Heterozygous - Non Barrington Brown - Cat unaffected - i.e. Ba/ba carrying Barrington Brown Black/Brown/Chocolate etc Mahogany Brown/Light Brown/milk Homozygous - Barrington Brown -liberty coffee in colour (depending on ba/ba
Technological Quality of Meat for Processing 27 in fat, 10% lower in cholesterol and 17% while that from Duroc and Duroc/Hampshire lower in calories (USDA 2007). However, was lower in fat. Pork from Danish Landrace genetic selection for leanness has not been Duroc pigs was more tender than that from without unintended consequences. Pigs Landrace, Duroc, and various crosses with homozygous for the Halothane gene (nn) Yorkshire pigs. Blanchard et al. (1999) have higher gain: feed ratios, and their car- reported that meat from crossbred pigs that casses are leaner than those from Halothane were at least half Duroc were more tender negative (NN) and heterozygotic (Nn) pigs than that from Large White and British (Leach et al. 1996). While pigs carrying one Landrace crosses. Brewer et al. (2002) also
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