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Leno4ka [110]
2 years ago
12

Red Is dominant over yellow. If a male purebred red rose(RR) Is crossed with a female hybrid rose (Rr), what percent of

Biology
2 answers:
Kay [80]2 years ago
7 0

Answer: should be 50%

Explanation:

marshall27 [118]2 years ago
7 0

Answer: I think it's 100%

Explanation:

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What refers to the different species found in a given area at a specific time
Lelechka [254]

Answer:Biodiversity. The variety of organisms in a given area. Succession. The replacement of one community by another at a single place over a period of time. Pioneer Species.

Explanation:

3 0
3 years ago
Suppose there is a protein "A" which binds to a DNA sequence and increases transcription of the gene CBC23. In the presence of m
fenix001 [56]

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.

7 0
3 years ago
There are many routes of administration that can deliver drugs directly to the developing fetus. The direct fetal routes of drug
rjkz [21]

Answer:

The correct answer is option - 1. If passage through the placenta is adversely affected by fetal disease. and 4. If rapid drug effects are required.

Explanation:

Normally the drug that is provided and administrated to the fetal is through the placenta of the mother. The direct delivery of medicine can be dangerous. However, with the advancement of the medical technology direct fetal drug administration is possible and it assists in the rapid uptake of the drug by the fetus.

If the fetus requires a rapid drug effect it can be provided by direct drug delivery. Also when the placental is not working properly and affected by the disease it is recommended to provide the fetus with the drug with the help of direct delivery.

Thus, the correct answer is : 1. If passage through the placenta is adversely affected by fetal disease. and 4. If rapid drug effects are required.

3 0
3 years ago
If both parents are carriers of an recessive inherited trait, what are the chances that their child will express that trait?
ZanzabumX [31]
The chances that the child will express that trait is 1/4 or 25%. Let the dominant trait be R and the recessive r.
A cross between Rr and Rr would yield RR, Rr, Rr and rr. Only RR would express the trait since its recessive.
Therefore chances =1/4 or 25%
5 0
3 years ago
Oxygen is produced from splitting a ________ molecule
matrenka [14]
I beleive it might be a Hydrogen molecule but I am not 100% positive of this.
3 0
3 years ago
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