Biology

During development, many genes act in such a way as to decrease the number of alternative ...

Started by aabwk4

Give a brief definition of a homeobox.

Started by Mr.Thesaxman

The bicoid gene of Drosophila generates embryos with two posterior regions. What is the likely ...

Started by student77

It is presently believed that the asymmetric distribution of substances in the egg, positioned by ...

Started by ENagel

How do segment polarity genes relate to pair-rule genes?

Started by NClaborn

Provide a brief description of segment polarity genes, including their regulation and their ...

Started by jjjetplane

Which functions earlier in development: maternal-effect genes or zygotic genes?

Started by Pea0909berry

Three investigatorsNsslein-Volhard, Wieschaus, and Lewiswon the Nobel Prize for physiology and ...

Started by AEWBW

Immediately after fertilization of a Drosophila egg, the zygote nucleus undergoes a series of ...

Started by dakota nelson

Alternative RNA processing generates different mRNAs, which can direct the synthesis of different ...

Started by pepyto

An upstream activator sequence (UAS) can function at variable distances and in either orientation. ...

Started by mydiamond

The CAAT (CAAT box) sequence appears to be critical to the ability of many eukaryotic promoters to ...

Started by jasdeep_brar

In general, one could say that fewer levels of regulation are possible in prokaryotes than in eukaryotes.

Started by Yolanda

In what way is gene rearrangement related to gene regulation? Give an example.

Started by Wadzanai

In some cases, genes undergo amplification (local, multiple duplications) when additional gene ...

Started by vinney12

List three general pathways in which eukaryotic mRNA is typically degraded in eukaryotes.

Started by imanialler

When transcription factors interact with DNA, is the resulting genetic control typically positive or negative?

Started by brutforce

List three major structural classifications of DNA-binding domains that are found in eukaryotic ...

Started by Collmarie

What evidence indicates that steroid hormones exert their influence at the level of DNA?

Started by ss2343

What is meant by the term helix-turn-helix (HTH)?

Started by michelleunicorn

What are zinc fingers, and why are they frequently encountered in descriptions of genetic regulation ...

Started by cherise1989

The human metallothionein IIA gene (hMTIIA) is transcriptionally regulated through the interplay of ...

Started by sjones

What are the approximate positions of consensus sequences (modular elements) at the 5 end of eukaryotic genes?

Started by Melani1276

Describe the difference between a focused promoter and a dispersed promoter.

Started by Marty

Describe three characteristics of enhancers and silencers.

Started by jilianpiloj