You want to use RNA interference to make a fruit fly that lacks the function of gene X only in its antenna - the rest of the fly's body has a functional gene X. Which of the following things would you need to construct an RNAi transgene for this purpose? Check all that apply? 1. A gene X cDNA.
2. A DNA segment containing a fly promoter.
3. An enhancer active only in the antenna.
4. The enhancer of gene X.
5. A DNA segment containing the P element inverted repeat sequence.
6. Genomic DNA 5' and 3' to the transcription start of gene X.

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.

Identify the type of energy used in each action. the flexing of an arm muscle: a signal transduction process by a neuron: a ball at the top of a hill: 1. electrical energy 2. mechanical energy 3. gravitational potential energy

Ayoung boy has been found and police are trying to locate his family they take a dna sample from him and begin collec dna samples from families who have missing children if police use dna samples only from the fathers, which type of dn technology can they use to identify the boy's parent? y-chromosome analysis omtdna (mitochondrial dna) analysis vntrs (variable tandem repeats) o pcr (polymerase chain reaction) analysis