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TLS Online TPP Program

#Question id: 6964

If embryos are disaggregated with chemicals or proteases, and the individual cells are mixed together in culture, what will happen?

#SCPH01 Biochemistry
  1. The cells will regulate to form one or more normal embryos
  2. The cells will often sort themselves so that like cells are together
  3. The cells will reaggregate to form a normal embryo capable of continuing development.
  4. The cells will associate with one another randomly.
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TLS Online TPP Program

#Question id: 4763

#SCPH12 I Genetics

in a rare blood type referred to as the bombay phenotype, individuals are unable to attach the a or b antigens to their red blood cells. individuals that are homozygous recessive for gene "h" have the bombay phenotype and their blood type is type "o" regardless of their abo genotype. this is an example of what extension of mendelian inheritance?
TLS Online TPP Program

#Question id: 2928

#SCPH01 Biochemistry

Which of the following S. pombe mutants is(are) larger than normal?
TLS Online TPP Program

#Question id: 3657

#SCPH06 I Botany

Mutations in excision repair genes or a translesion DNA polymerase cause:
TLS Online TPP Program

#Question id: 3291

#SCPH06 I Botany

Which of the following is the most predictable outcome of increased gene flow between two populations?
TLS Online TPP Program

#Question id: 6949

#SCPH28 | Zoology

During gastrulation in Xenopus, the future mesoderm and endoderm move inside the embryo through the "blastopore"; in contrast, in chickens, gastrulation involves cells moving inward through the: