A team of conservation biologists, surveying a population of frogs on an island, captured and marked 312 individuals in the first sample. In a second sampling, 3 days later, the team caught 140 individuals of which 26 were previously marked. The total number of frogs on the island is estimated to be . (Use decimal notation, not fractions or percentage)

TLS Online TPP Program

#Question id: 6980

#Unit 5. Developmental Biology

Teeth form from

TLS Online TPP Program

#Question id: 6981

#Unit 5. Developmental Biology

Hedgehog signaling at the compartment boundary in the Drosophila wing disc leads to the expression of what signaling molecule in the adjacent anterior cells?

TLS Online TPP Program

#Question id: 6982

#Unit 5. Developmental Biology

Which of the following genes control the final structures of appendages from each segment?

TLS Online TPP Program

#Question id: 6983

#Unit 5. Developmental Biology

In vertebrates, the heart forms from:

TLS Online TPP Program

#Question id: 6984

#Unit 5. Developmental Biology

Which of the following genes is unlikely to be involved in preaxial polydactyly in mice?

TLS Online TPP Program

#Question id: 6985

#Unit 5. Developmental Biology

The ventricular proliferative zone is: