Regulation is highly influenced by the microenvironment that surrounds a stem cell and is known as the stem cell niche.

TLS Online TPP Program

#Id: 6061

#Unit 10. Ecological Principles

Coral reef ecosystems  Most reefs are located between the Tropics of Cancer and Capricorn, in the Pacific Ocean.  Coral reefs are one of the most diverse ecosystems on our planet, yet they cover less than 1% of the Earth's surface. 

 

TLS Online TPP Program

#Id: 7996

#Unit 10. Ecological Principles

An organism’s niche includes the range of abiotic and biotic conditions it can tolerate. 

In the case of the cottontail rabbit, its niche includes the ranges of temperature and humidity that it can tolerate, the plants that it eats, and the predatory hawks and coyotes with which it coexists.

TLS Online TPP Program

#Id: 4569

#Unit 8. Inheritance Biology

DUPLICATE RECESSIVE EPISTASIS(9:7): Duplicate recessive epistasis, in which two recessive alleles at either of two different loci can suppress a phenotype.

TLS Online TPP Program

#Id: 6105

#Unit 3. Fundamental Processes

In contrast to most alkylating agents, the hydroxylating agent hydroxylamine (NH2OH) has a specific mutagenic effect. It induces only G:C → A:T transitions.

TLS Online TPP Program

#Id: 8582

#Unit 2. Cellular Organization

Lamins B are post-translationally prenylated, which helps them associate with the inner nuclear envelope membrane.