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Biology : Recent Questions and Answers (Page 57)

Find answers to your questions about Biology or help others by answering their Biology questions.

Do all monarch caterpillars have two pairs of needle-shaped protrusions(or they can have three pairs)?

I found this here: Is this a monarch caterpillar?Do all monarch caterpillars have two pairs of...

Asked on 02/19/2021 by a.RR

0 answer

Pet 28a plasmid is obtained from which type of bacterial strain

I want to ask some question which is very confusingPet28a is a vector.I want to know which strain of bacteria have pet28a plasmid?E.coli DH5 alpha strain have pet28a...

Asked on 02/18/2021

0 answer

Why do wasps (Vespula vulgaris) build a new nest every year?

I have been searching it for a while, and i haven't found an answer, why do common wasps (Vespula vulgaris) create a new nest every year instead of using the...

Asked on 02/18/2021 by Leticia

0 answer

Why is this spider wound in such a dense web?

I saw this thing yesterday on my window curtain, and I've been wondering what this is.It looks like a dense network of spider web, and the spider inside it...

Asked on 02/18/2021 by Mohammed Ayaan

1 answer

What is the physiological function of the CoV-2 targeted ACE2-Mas receptor pathway on lung/nasal epithelial cells?

CoV-2 targets ACE2 receptor on epithelial cells, pneumocytes, as well as nasal cells which seem to be cells of the nervous system (loss of smell is a symptom of Covid)....

Asked on 02/16/2021

0 answer

Why is the consumer/producer biomass ratio higher in the oceans?

According to Bar-on et al. (2018) (see figure 2), the terrestrial consumer/producer biomass ratio is 20/450 while the marine consumer/producer biomass ratio is 5/1 (in Gton...

Asked on 02/16/2021 by Nichola

2 answer

3 primers to know if Homozygous, Heterozygous or WT

In this imaginary experiment, I am using T-DNA to make an insertional mutagenesis that will get randomly inserted into the DNA where it might get inserted within a gene, disrupting...

Asked on 02/15/2021

0 answer

COVID-19 deaths by year of birth?

Are there (global, country, etc.) data of COVID-19 deaths (or hospitalization) by year of birth? I was able to found them only by "age group", the meaning of this being...

Asked on 02/15/2021 by j.o.

1 answer

Why is the spinal cord shortened in some vertebrates (cauda equina) but not in others?

Hodos, 2009, mentions that the "spinal cord tail" that humans have is not present in most vertebrates. This page mentions cauda equina is not present early on...

Asked on 02/14/2021 by kRicket

0 answer

Commercial suppliers of cloned vectors?

I am a recent transplant from academia to industry. I would like to follow-up on some experiments in the literature, for which I need cloned plasmids. Addgene of...

Asked on 02/13/2021

0 answer

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