Sponge Bob Genetics

Yellow is the dominant color and the “not yellow,” or recessive color, is blue. Write yellow or blue to identify the phenotype of the alleles below.
YY
Yy
Yy

Square is the dominant shape and the recessive trait is round.
What letter should you use for your alleles?
Write the recessive homozygous genotype
Write the dominant homozygous genotype
Write the heterozygous/hybrid genotype

What shape would Ss be?

What shape would ss be?

If you make a Punnett Square for Ss x Ss, what will the final ratio be?

Thank you so much in advance I could never figure this out!

relative dating involves things like higher layers are most recent than rocks lower in the sequence. this can be extended to the known sequence of fossils. rocks containing rabbit fossils are later than those containing dinosaur fossils.  

absolute dating methods mainly use radioactive elements that have known rates of decay and produce recognizable products. for example potassium 40 decays to produce argon. once a rock has solidified the argon is trapped. by measuring the argon and potassium0 you can get an accurate number for the age.  

some other methods are good for archaeological ages. dendrochronology involves recognizing the sequence of tree rings. the orientation of magnetized particles in baked clay can be used to date a fire.

hope this .. .

c

explanation: