How can the hair growth rate be used to determine how long ago an individual dyed their hair?

28. how many linkage groups will be formed by homogametic organism with 28 chromosomes?

Refer to the family pedigree shown here. in generation i, one parent is affected by the gene mutation and one parent isn't. in generation ii, all three children are affected by the gene mutation. what can you conclude about this gene mutation? a. all children born in future generations will be affected by this disorder. b. this gene mutation is a dominant disorder. c. this gene mutation is a recessive disorder. d. the generation i mother is a carrier of this gene mutation.

Modern sea star larvae resemble some primitive vertebrate larvae. this similarity may suggest that primitive vertebrates