1. (i) What is the frequency of gray, sleek testcross progeny? (ii) What is the

Question

1.

(i) What is the frequency of gray, sleek testcross progeny?

(ii) What is the frequency of pudgy, mean testcross progeny?

(iii)What is the frequency of gray, friendly testcross progeny?

(iv)What is the frequency of pudgy, friendly testcross progeny?

(v)What is the frequency of black, friendly testcross progeny?

(vi) What is the frequency of black, pudgy, mean testcross progeny?

(vii) What is the frequency of gray, sleek, mean testcross progeny?

(viii) What is the frequency of gray, pudgy, friendly testcross progeny?

In dolphins, gray (G) is dominant to black (g), Sleek (S) is dominant to pudgy (s) and friendly (F) is dominant to mean (f). All loci are autosomal. Pure-breeding black, sleek, mean dolphins were mated to pure- breeding gray. pudgy. friendly dolphins. The F1 were testcrossed. Based on the map below and a coefficient of coincidence of 0.7, determine the frequency of each phenotype in the testcross progeny Round each answer to 5 decimal digits Body Type Disposition Color 17cM 2cM

Explanation / Answer

Answer
GsF. X. gSf
F1 GgSsFf
Test cross GgSsFf. X. ggssff

GSF gsf. 2%. 1) GSf gsf GsF gsf. Parental type. 3) 4) Gsf. gsf. 17%. 2) gSF gsf. 19%. 5) gSf gsf gsF gsf gsf gsf.

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