50 % of the offspring are expected to have roan coat If two roan cattle were crossed.
Explanation:
In codominance both alleles from the parents are expressed and the phenotype is different from the parents.
Roan is a type of coat colour where there is even occurrence of coloured and white hairs on the coat of the cattle.
The genotype of Roan cattle is CRCW (CR red, CW-white)
If two roan cattles are mated:
CRCW X CRCW
punnet square shows:
CR CW
CR CRCR CWCR the genotype ratio = 1:2:1
CW CWCR CWCW phenotype ratio = 1:2:1
1 pure white cattle
1 pure red cattle
2 roan cattle
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mon anniversaire
Hope this helps!
The stomata is open during the day.
Answer:
They cannot use the reasoning, "Dolphins and Ichthyosaurs form a paraphyletic group."
Explanation:
This is because they always form a monophyletic goup. Both of the species have specific morphological similarities that are enough to consider them in monophyletic group instead of a divergent paraphyletic.