All Questions
49
questions
5
votes
3
answers
123
views
What has caused my oxeye daisies to mutate?
Some oxeye daisies (Leucanthemum vulgare) in my garden are showing strange mutations. I have a few oxeye daisy plants around my garden in different areas, but only one plant's flowers are showing ...
- 51
1
vote
0
answers
52
views
How similar are polyembryonic plant siblings to each other?
I successfully germinated all the seeds I found in a Yuzu fruit. From about half of the seeds there are 2 little plants growing, like in the picture. I understand this is due to the occurence of ...
- 23
0
votes
0
answers
78
views
Genetics question on recombination frequency
A space probe discovers a planet inhabited by creatures that reproduce with
the same hereditary patterns seen in humans. The phenotypic characters are
height (T=tall, t=dwarf), head antennae (A-...
1
vote
1
answer
58
views
Rapid generation advancement in Maize breeding
Maize (Zea mays L.) is one of the important crops and its acreage is increasing considerably especially in Asia and Africa. The common production system in tropical and subtropical climates is rain-...
5
votes
1
answer
147
views
Saving a Maize Landrace from Inbreeding Depression
I have 10 seeds of a rare corn landrace. I probably won't be able to acquire more and the cultigen's long term fate is unknown. So, I want to do my best to preserve it for future generations.
Corn is ...
- 51
1
vote
0
answers
70
views
Can Monsanto's (in)famous hybrid seed crops be cloned/grafted? If not, is there a technical or legal reason?
I understand that the seeds of a crop made from modern-day super hybrids will not, usually, produce the same quality plants in the next generation. Therefore, farmers have to buy new hybrid seeds each ...
- 517
3
votes
1
answer
99
views
Sextuplet corn (Zea mays with branched ear)
In 2019 I planted some sweet corn next to some Hopi blue flint type corn. Of course my mistake was apparent once I started to see the ears. The closer the two types were to each other, the more they ...
0
votes
1
answer
134
views
Are peppers on the same plant genetically identical?
I'm a hot pepper growing enthusiast and on one unknown super hot cross there is significant variation in pod size and shape.
What causes significant variation of pod shape and size on the same plant? ...
1
vote
1
answer
3k
views
What is the genetic reason that this flower has petals of two different colors?
I have two different varieties of the flower, portulaca: one is bright pink, the other is pure white with pink specks at the centre. Recently a flower bloomed which had 50% of the former and 50% of ...
- 324
1
vote
0
answers
47
views
Is presence of air necessary for silica gel to absorb moisture?
I am a biologist currently doing field work where I need to quickly dry leaf samples using silica gel crystals. I use the orange indicating kind that are 2-4mm in size. The setup is like this. I ...
- 111
0
votes
0
answers
29
views
Is Wikipedia a good source of taxonomy? [duplicate]
I have been quite interested in biology lately,and I would like to know whether it is a good choice to look up taxonomic information there.
1
vote
0
answers
29
views
What genes in a plant determine whether a stem is erect or climbing?
I was randomly reading this Wiki article on Jasmine and this question crossed my mind after reading the following lines:
Jasmine can be either deciduous (leaves falling in autumn) or evergreen (...
- 1,955
3
votes
0
answers
210
views
Regulation of LBD33 genes Arabidopsis. If LBD 33 gene is up-regulated by auxin then why does expression decrease when increasing auxin concentration?
I have a question regarding the regulation of lateral boundary domain genes in Arabidopsis (specifically LBD33). I am an undergraduate student trying to understand the results of a lab where I measure ...
- 221
1
vote
0
answers
38
views
Can Tajima's D and other population genetic tools be used to copare Arabidopsis ecotypes?
I am currently investigating 2 genes in Arabidopsis taliana that are a product of a recent duplication even (observable from synteny and phylogenetic analysis). In addition to the molecular and ...
- 11
1
vote
1
answer
178
views
How does one identify a seed's species & variety?
How does one identify a seed's species & variety, could it be done by some means of DNA or by use of a microscope?
Say for example, I had a pumpkin seed, I knew that it was a "small sugar pumpkin"...
- 11