Answer:
this is just evolution like the birds on the Galapagos islands also I don't see the question
Answer:
A = Activator
B = Effector
Explanation:
An activator is a protein which typically binds to a short (50–1500 bp) region of DNA which might be located either upstream (mainly) or downstream of a gene so as to cause increased transcription. This particular region of DNA is known as enhancer and activator is also known as transcription factor. Activator is a trans-acting factor which binds to the cis-acting factor which is enhancer so as to enhance transcriptional expression.
But another protein named as effector may restrict activator from binding to the enhancer leading to a decrease in transcriptional expression by binding to the activator allosterically. Allosteric binding of effector to the activator causes conformational change in activator so it can no longer bind the enhancer.
Answer:
Miniature parlor palm- Angiosperm monocot
Coleus- Angiosperm eudicot
Blue rabbit's foot fern- pterophyte
Geranium- Angiosperm eudicot
Foxtail fern- Angiosperm monocot
Tree fern- Angiosperm monocot
Boston fern- pterophyte
Spider plant- Angiosperm monocot
Answer:
A purine always forms a complementary base pair with a pyrimidine.
Explanation:
Purine bases such as Adenine pair specifically with Thymine , a pyrimidine base forming two bonds; just as Guanine pair specifically with Cytosine forming three bonds.
This specific base pairing are complimentary in nature and grants stability to the DNA.
