Name: Chapter 12&13 1. In a cross between a homozygous green pod colored pea pla
ID: 216816 • Letter: N
Question
Name: Chapter 12&13 1. In a cross between a homozygous green pod colored pea plant (GG) and a homozygous yellow pod colored pea plant (vy) which trait is dominant and which trait is recessive? 2. In heterozygous individuals, there is/are alelels) a. 2 identical b. 2 different 3. What is the ditlerence between the Principle of Segregation and the Principle of 4. When 2 alternate forms of an alele cortbute egaly to a phenotype, it is called a. Incomplete Dominance b. Peiotropy d. Multiple Alieles e. Polygenic 5. A father is heterozygous for neurofbromatosis L an autosomal dominant disorder while the mother is unaffected. What is the likelihood of their offspring inheriting this disorder? Show your work with a Punnett square 6. Olivia, who has blood type B, had an immune reaction when transtused with blood type A Her son, blood type AB, had no such reaction when transtused with blood type A Why? a. The gene for type A is dominant over the gene over the gene for type B b. The gene for type A is incompletely dominant over the gene for type B c. Blood type genes are sex-linked, so the type B gene is inactive in her son d. Both aleles are active in her son Name: 7. In labrador retrevers, gene E oodes for presence of ngment (E . Pgment. @ # no pigment). Gene B encodes tor the amount of pigment deposted(B#alt deposited, b less deposited). Which individual would have a yelow coar? b. EeBb ?.eeBB d. EebbExplanation / Answer
Answer:
1). Green (GG) is dominant over yellow (recessive)
2). B. 2 different
Explanation: Aa –Heterozygous ; AA-homozygous dominant ; aa-homozygous recessive.
3).
Law of Segregation explains about the movement of alleles in gamete formation when single gene with two alleles is considered. Alleles separate during gamete formation.
Independednt assortement explains about the movement of allele into to gametes when more than one gene with each two alleles is considered. Each pair of allele of a gene segregates independently of other alleles of gene.
4). C. Codominance
Explanation:
Codominance is a form of
dominance wherein the alleles of a gene pair in a heterozygote are fully expressed. This results in offspring with a phenotype that is neither dominant nor recessive.
5).
Father-affected (Aa) x Mother-unaffected (aa)----Parents
a
A
Aa (affected-50%)-neurofibromatosis
A
aa (unaffected-50%)
a
A
Aa (affected-50%)-neurofibromatosis
A
aa (unaffected-50%)
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