The question is incomplete as it does not have the options which are:
- growth factor receptors
- DNA polymerase
- transcription factors
- enhancers
- nucleosomes
Answer:
Transcription factors
Explanation:
The dioxin is an organic by-product formed from the chemical reaction of the organic compounds.
The dioxin is one of the causes of cancer in organisms and the can acts as teratogen during the development of the prenatal child.
The dioxin shows it affects by binding to specific receptors which can activate the transcription of genes and are thus called transcription factors. The dioxin binds these transcription factor called AH receptors and can cause cancer.
Thus, the Transcription factor is the correct answer.
What phenotypic ratio would you expect as a result of a test cross between a dihybrid organism and one that is homozygous recessive for alleles at two independent loci?
a. 3:1
b. 9:3:3:1
c. 1:1:1:1
d. 1:2:1
e. 9:4:2:1
Answer:
c. 1:1:1:1
Explanation:
When a heterozygous individual for two genes is test crossed with a double homozygous recessive individual, the progeny is obtained in 1:1:1:1 phenotypic ratio. This occurs as the heterozygous dominant individual forms four types of gametes in 1:1:1:1 ratio while the homozygous recessive individual would form only one type of gamete having one recessive allele for each gene.
For example, a test cross between TtRr (tall and red) and ttrr (short and white) would produce a progeny in following ratio=
1 tall, red: 1 tall, white: 1 short, red: 1 short, white
Here, T= tall, t= short, R= red, r= white
Answer:
All options about the enzymes are true
Phytoplankton are essential to aquatic life zones because: they provide the basis of food chains. Log in for more information. Added 5/22/2016 9:52:12 AM This answer has been confirmed as correct and helpful.
Answer:
2.
Explanation:
2 number ok this is the the answer