geneticspg8 - 23 In human beings brown eyes are usually...

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Unformatted text preview: 23. In human beings, brown eyes are usually 6" / dominant over blue eyes '3 SuppOSe a blue—eyed man marries a brown— eyed woman whose father was blue-eyed. Use I Q the format to the right to fill in as many details P L“ t‘ V p _ ,. p M ,, .f as you can. P2 would be the grandparents of busy»? 1 _iéL .4, .-_J’_ _9_ i.3“’”" in}? the F1. ' x? L_ ’6‘; v® @ @ LA” L V ' ‘”‘ (mm What proportion of their children would you (Q predict will have blue eyes? 1. In 3. I: if; 24. A own-eyed man had a brown—eyed father ‘ " e, 'x p and a b tie—eyed mother. 6 6‘ 9 $ He marries a maxed woman whose father Phenotype / ,/"' Q and mother were botlfbrown—eyedK The _._74. _ _._... 1 h b1 d \\ P /’ coup e as a ue-eye son. \ 2 Gemtyp m _— For which of the individuals mentioned can you be sure of the genotypes? ‘ Q ‘ What are their genotypes? What ge pes are P mamas k _ \ possible for the others? 1 ‘ ‘\ Genotype ‘* . TEST CROSS 25. In this pea plant, the purple allele for flowers is dominant over the white allele. Imagine that you have a purple—flowered pea plant of unknown genotype. Explain how you would go about crossing this plant to determine if it is a true—breeding strain of purple—flowered pea plants. Lemur: eilw'““’3 “W V‘O‘V‘Uznfik ‘9 ’“’“’"’“‘"" ”kl” ‘\ “ix-pi 1021341 it Pi) ILh/UJV'I (131;,ze‘tli‘fk‘: _) - ._ ‘ , )‘3. i». . Aid-L :11): :5 9531" I)”. /§\‘ijwsq H32 (i.?.,J\C,fI‘ £92: —Ldi‘ we \I my 1.41 W 1ch x J u , ‘ A ‘_ 1 , . ’ J ,er \‘Tr'?t’sfl_. tvby'fi'u) (_ h?) 0 ’lP ci\.:ytmy,_-..-t;ia "it ”on“ A, V‘" V“ {rm-um .t-Q 1w , _ J . ‘ Elm“ “I” 'K V!“ 53kt UMW'LLW v t2 I w rig) 'f fifty {Lari-k W '1. k M .7 «if [(109 ()u'filfi 12-8 {,5 put 3/ . ,71, a: ‘ '1»): ”(I a“; VL up". (Hf-1:: “if I < J ...
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