Portion of
HEMOGLOBIN DNA : G GA CTC CTC
MRNA : CCU GAG GAG
Amino acids : Proline-Glutamic Acid-Glutamic Acid

Sickle Cell Anemia is caused by a point mutation known as a substitution. Show what would occur if the first T (“thymine”) DNA base in the portion shown above experienced a mutation with a substitution of A (“adenine”).

Sickle Cell Hemoglobin:

Portion of mutated hemoglobin DNA:

mRNA:

Amino Acids:

The image shows embryos of three vertebrate classes

What two factors does carrying capacity compare? population size and resource use population growth and resource availability resource use and time population size and time

During crossing-over, a. genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles. b. nonsister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. c. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles. d. sister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. e. genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.