Search found 6 matches

by cvic1
Mon Jan 07, 2008 2:42 am
Forum: Genetics
Topic: DNA
Replies: 2
Views: 1807

DNA

Would there be any consequences – marginal or critical – if mutations should occur in any of the DNA sequences which code for rRNA?
by cvic1
Mon Dec 17, 2007 1:13 pm
Forum: Genetics
Topic: blood test
Replies: 2
Views: 2062

blood test

Can you use a blood test (to determine someone's ABO blood group) to establish conclusively that a given man has fathered a particular child?
by cvic1
Thu Dec 13, 2007 1:36 pm
Forum: Genetics
Topic: Patterns of inheritance
Replies: 1
Views: 2233

Patterns of inheritance

The gene for ear lobe attachment has two alleles: the one for free lobes is dominant (A) and the one for attached ear lobes is recessive (a). A woman is heterozygous for this trait. What are the possible gametes she can produce?
by cvic1
Tue Dec 11, 2007 7:19 am
Forum: Genetics
Topic: Genes
Replies: 2
Views: 1346

Genes

In humans, the allele for brown eyes (B) is dominant over the allele for blue (b). A couple, one of whom has brown eyes and the other blue, have four children, all with brown eyes. Is this proof that the brown-eyed parent is homozygous dominant? Why?
by cvic1
Tue Dec 04, 2007 12:59 pm
Forum: Genetics
Topic: PHENOTYPE
Replies: 3
Views: 1550

Thanks, So I would have to check it's chromosomes to determine it's sex. What if it is neither a male or female?
by cvic1
Tue Dec 04, 2007 3:48 am
Forum: Genetics
Topic: PHENOTYPE
Replies: 3
Views: 1550

PHENOTYPE

You discover a new species of animal which bears, superficially, no known relationship to any living animal. All individuals of the species are phenotypically the same, but the species reproduces sexually. How will you be able to determine which sex is which? Can any help with this question. I don't...