Signal sequences

contain one or more positively charged amino acids adjacent to a continuous stretch of 6–12 hydrophobic residues (known as the hydrophobic core)

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#Id: 8054

#Section 2: General Biology

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#Id: 10306

#Section 2: General Biology

Superantigen

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#Id: 7331

#Section 3: Genetics, Cellular and Molecular Biology

Assumptions—If a population is large, randomly mating, and not affected by  mutation, migration, or natural selection.

Prediction 1 —The allelic frequencies of a population do not change

Prediction 2- The genotypic frequencies stabilize after one  generation in the proportions p2, 2pq, and q2.

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#Id: 9200

#Section 3: Genetics, Cellular and Molecular Biology

1. Resistant to pesticide in insect

2. Antibiotic resistant in pathogen

3. Industrial melanism

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#Id: 9291

#Section 2: General Biology

Two types of symporters (NRT1 and NRT2) and one antiporter (CLC) are involved in nitrate transport in plants.