If the mother is homozygous for having a horned nose (two horned alleles), could

Question

If the mother is homozygous for having a horned nose (two horned alleles), could she have a son who is hornless?

A) No

B) Yes

C) It will depend on the genotype of the father dragon.

DRAGON GENOME -DECODING THE GENES Chromosome Dominant alleles Recessive alleles W has wings L long neck and tail A normal skin pigment G skin color green* Green Autosome W no wingS 1 short neck and tail a completely white g skin color red* Yellow Autosome not fire breather B fire breather T and t [Incomplete Dominance-see below] D and d [Codominant-see below] b X Chromosome H has horn on nose h hornless Y chromosome M male sex (results in spike on tip of tail) Incompletely dominant alleles TT five-toed Tt four-toed tt three-toed Codominant alleles DD diamond scales Dd diamond & circular scales dd circular scales *If a dragon is aa and therefore unable to make skin pigment, it will have white skin no matter what alleles it has for the skin color gene

Explanation / Answer

Answer:

1). White skin genotype= aa

White skin triat will bitb recessive alleles.

2). A. No

Explanation: Horned orhornless alleles are present on X chromosomes. Sons will get X chromosome from mother only. As the mother doesn't have hornless allele, the sons will not have hornless phenotype

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