1. Galactosemia is a disease that will only be expressed when a person is<span><span><span> homozygotic recessive for that trait. It's the same as saying it </span> has</span> 2 recessive alleles.
Dominant allele-</span><span> G
recessive allele- g
</span>
Homozygotic dominant: GG <span><span>(doesn't express the disease)
</span>Heterozygotic : Gg (doesn't express the disease)
Homozygotic recessive: gg (expresses it)</span>
2.
-Mary has this genotype: G_ . This means it can be GG or Gg
-The exercise already says that justin's mother is GG (<span>Homozygotic dominant)
</span>- If his mother is GG, one of these G's is going to be passed to Justin. So, his genotype is either GG or Gg. Since we are not sure we write as: G_.
Justin's genotype: G_
3.
-Justin's uncle has galactosemia so his genotype is: gg
-If the uncle was able to receive two recessive alleles it means the mother had one to pass, and so did the father. However, in the diagram, it's not pointed out that they have a disease so it only leaves one possible genotype: Gg. Justin's grandparents are both Gg.
4. The last person to analyze is Justin's father.
If we crossed the grandparents (Gg x Gg) we could obtain these genotypes: GG, Gg, gg.
Justin's father doesn't express the trait, so it's not gg. That leaves us with either GG or Gg. Since we can't know for sure, onece again we write as G_
Justin's father: G_
Answer:
- PLQ (Double Recombinant gamete)
- plq (Double Recombinant gamete)
Explanation:
Cross:
Parentals) pLq/PlQ x plq/plq
Gametes) pLq (Parental) plq (Parental)
PlQ (Parental)
pLQ (Recomb)
plQ (Recomb)
PLq (Recomb)
Plq (Recomb)
PLQ (Double Recom)
plq (Double Recom)
Parentals)
- p----L-----q
- P.....l........Q
Simple recombinant)
Recombination occurs between p and L, OR between l and q.
- P----L-----q
- p......l.....Q
- p----L-----Q
- P.....l........q
Double recombinant)
Recombination occurs between p and L, AND between l and q.
- p-----l------q
- P......L.......Q
Answer:
Because salt is soluble in water, salt applied to such surfaces dissolves. Liquid water has what is known as a high dielectric constant, which allows the ions in the salt (positively charged sodium and negatively charged chlorine) to separate.
Explanation:
It will be transported into the cell through the process of endocytosis, which is a form of active transport. Active transport requires energy in the form of ATP. Hope this helps! :)
Answer:
relationships among organisms and evolutionary relationships for organisms with a shared common ancestor.
