Biology Questions, Problems & Solutions : TransWikia.com ~ Page 31

Why is the chordate nerve cord described as hollow when it appears to be solid?

My textbook says arthropods have a double, ventral, solid nerve cord....

Asked on 06/23/2021 by Derek Stone

1 answer

Are human bodies programmed to die?

Following from this question: What is the evolutionary advantage of death?: Is there any evidence that human bodies have systemic self-destruction built into their developmental program? I'm not talking...

Asked on 06/22/2021 by Dave Gerrard

3 answer

Can HIV be transmitted via mosquitos?

It is known that HIV is usually transmitted by direct blood or body fluid contact between an infected individual and a healthy person (like blood transfusion or needle sharing): Suppose...

Asked on 06/22/2021 by rishab bairagi

2 answer

Help in identifying an unknown Golden Worm/Larvae

Can anyone help me to recognize this type of species? Is it a clustered worms or clustered larvae? Location is in Bali, Indonesia. Recently this species is goes viral, but...

Asked on 06/22/2021 by vhy

1 answer

To which ungulate species does this tooth remainder belong?

Found on the beach in Çanakkale, Turkey. I have found a lot of these, but this is the first one that has parts...

Asked on 06/21/2021

2 answer

How is the renal osmotic gradient maintained even though the blood osmolarity changes?

I am a high school student and I am a little confused in 2 things related to our urinary system:We know in our kidneys a countercurrent mechanism exists due to...

Asked on 06/21/2021

1 answer

The Effects of Large Static Magnetic Fields on the Human Nervous System

How do static magnetic fields impact the nervous system? I imagine with sufficiently intense magnetic fields the Lorentz force is going to change the behavior of nerve impulses, but at...

Asked on 06/21/2021

1 answer

What instances are there in which two species share the same binomial name?

Since binomials are required to be unique only within a kingdom, two species can share the same binomial name if they are in different kingdoms. I know of one instance...

Asked on 06/20/2021 by D Mellinger

2 answer

Is there a biological or technical reason for a 40 Ct cutoff in nucleic acid detection assay?

I have developed and validated a modified a nucleic acid test (NAT) for SARS-COV-2 detection using real-time RT-PCR (aka rRT-PCR, aka RT-qPCR). My assay is not for diagnostic use, but...

Asked on 06/20/2021

1 answer

Does transcription terminate at the end of antibiotic resistance genes on the Duet expression plasmids?

I am working with the pETDuet and pRSFDuet plasmids to express RNAs under control of the T7 promoter. On these plasmids the antibiotic resistance genes (Amp for pET, and Kan...

Asked on 06/19/2021

1 answer

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