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Describe how acetylcoenzyme A is formed in the link reaction.

The link reaction occurs in the mitochondrial matrix. In the first step, carbon dioxide and hydrogen are removed from two pyruvate molecules, producing two acetyl groups. The hydrogen removed is transferred ...
AP
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Describe and explain how a tiger with striped fur may have evolved from a non-striped ancestor

Natural selection: Mutations (e.g. of pigment gene, and of regulatory genes) creating variability between members of the same species. Selection pressure of prey availability - Selection pressures are extern...
RD
Answered by Ruchi D. • Biology tutor
11815 Views

what is co-dominance?

Co-dominance is when two alleles are expressed equally in the phenotype in the heterozygote. For example, plants that are homozygous for one allele may be red and plants that are homozygous for another allel...
PY
Answered by Pranathi Y. • Biology tutor
3760 Views

What are the characteristic properties of the genetic code?

Non-overlapping: The genetic code is read in triplets of bases, called codons, each of which codes for an amino acid. Degenerate: Each amino acid can be coded for by more than one base triplet. Non-ambiguous...
CH
Answered by Calum H. • Biology tutor
3455 Views

Describe the steps involved in mitosis and name the exact stages (6)

Interphase: DNA and organelles replicate 2) Prophase: Chromosomes condense (and become visible! - made up of two sister chromatids joined by centromere), nuclear membrane breaks down, and centrioles move to ...
RG
Answered by Ritika G. • Biology tutor
2691 Views