Biology

Cell autonomous genes affect only those cells in which they are expressed. Which group of early ...

Started by Capo

Which of the following is not a mechanism of differentiation?

Started by jhjkgdfhk

Use of double mutants has been invaluable in studying developmental pathways. InC. elegans,sex is ...

Started by a0266361136

There is much controversy in the news-both scientific and popular-about the use of embryonic stem ...

Started by appyboo

The abdominal segments ofDrosophilahave no appendages. Loss of function ofbithoraxgenes results in ...

Started by JMatthes

Suppose that a homeotic gene fromDrosophilais introduced into anArabidopsisembryo that has a ...

Started by ssal

Since mice embryos with loss-of-functionHoxmutations result in homeotic alterations, then ...

Started by FButt

Polycomb group (PcG) gene mutants cause ectopic expression ofAntennapedia(Antp) and other homeotic ...

Started by tiara099

Mutations of regulatory elements of developmental genes may have either dominant or recessive ...

Started by ec501234

Many mutations in thebithoraxgene are known, such aspostbithorax,contrabithoraxandbithoriaxoid. Each ...

Started by renzo156

In early vertebrate embryonic development, a number of pathways, such asWnt,Hedgehog, ...

Started by Cooldude101

In an organism such as a sea urchin, administration of actinomycin D prevents all mRNA synthesis. ...

Started by luvbio

HumanHoxgenes are in four clusters:HOXA, HOXB, HOXC, andHOXD, for a total of 39 genes. Besides ...

Started by lidoalex

Holoprosencephaly is a highly variable condition in mammals, including humans. Its effects range ...

Started by james0929

Drosophilamutations such asbcd, if homozygous in the mother, produce offspring with lethal defects, ...

Started by NClaborn

As aDrosophilalarva molts and becomes a pupa, most of the larval tissues die and adult structures ...

Started by lak

Aniridia is a human condition in which the eye has no iris. The protein encoded by the gene ...

Started by Marty

AnAntennapedia(Antp) mutant inDrosophilahas legs in place of antennae. This is caused by ________.

Started by jerry coleman

A pair-rule gene inDrosophilacalledruntcontrols nervous system formation. In the mouse,runtcontrols ...

Started by jake

A homeotic mutant flower has an arrangement (from outside in) of carpels, stamens, stamens, carpels ...

Started by pane00

What is the argument that, although human mitochondria all descend from a single ancestral ...

Started by Garrulous

If the mother and grandmother of a given family both exhibit phenotypic effects of a mitochondrial ...

Started by bobthebuilder

Explain the distinction between primary and secondary endosymbiosis.

Started by B

Transcriptional regulation of mitochondrial genes closely resembles regulation of ________ operons.

Started by BrownTown3

Mitochondrial mutations in mammals are passed to the offspring by the ________ parent.

Started by Caiter2013