Naked Science Forum
General Discussion & Feedback => Just Chat! => Topic started by: ariel on 22/02/2006 02:24:22
-
I've this big biology text book in front of me
so Im going to the glossary, randomly picking a word, and writing the definition...so lets see who can guess the word!
Among the earliest plants to produce seedlike structures or seeds.
hint: starts with a P
[:D]
-
Is it a PEA ?
Men are the same as women.... just inside out !!
-
Is it pteridosperm ?
Definition of pteridosperm:-
""seed fern: an extinct seed-producing fernlike plant of the order Cycadofilicales"".
[a.k.a Dinosaur's Dinner. [:)]]
-
The question is ambiguous. Do you mean "earliest" in an historical or annual sense?
-
sorry if it was ambiguous,
i was just going by the short definition in the glossary
well
the word was:
progymnosperm
[:D]
-
O.K. here is another random one
Type of photoautotrophic protistan; most are multicelled and aquatic; an abundance of phycobilins masks their chlorophyll.
guess guess!
I dont think I will give a clue on this one.
[:D]
-
quote:
Originally posted by ariel
sorry if it was ambiguous,
i was just going by the short definition in the glossary
well
the word was:
progymnosperm
[:D]
oh THAT !!...it was on the tip of my tongue !![^]
Men are the same as women.... just inside out !!
-
quote:
a.k.a Dinosaur's Dinner
actually i think you will find that was Sam Neil.
neil
do you really want THAT word on the tip of your tongue ?
(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fi48.photobucket.com%2Falbums%2Ff238%2Frayhinton56%2Fzbarta.gif&hash=686c8a10dfebf9afaeb64904cd95bfc5)
RE-HAB IS FOR QUITTERS.
-
guess the next word[:D]
-
'pneumonoultramicroscopicsilicovolcanoconiosis',
is that the word ?
RE-HAB IS FOR QUITTERS.
-
Cyanophyceae? i think thats the name for blue green algae
-Meg
-
ooooh getting very close :)
-
can we get a hint?
-Meg
-
red algae?
-Meg
-
YES!
[:D]
-
woohoo!!!!
oh i wish you could all see my happy dance
-Meg
-
Oh Poo !!..I thought it was either ' Horsey ' or ' Fluffy '
Men are the same as women.... just inside out !!
-
being a "one finger typist",it took me ages to type that word,and then it was wrong, boohooo
-
HEPATICOCHOLANGIOCHOLECYSTENTEROSTOMIES
FORMALDEHYDETETRAMETHYLAMIDOFLUORIMUM
DIMETHYLAMIDOPHENYLDIMETHYLPYRAZOLONE
SUPERCALIFRAGILISTICEXPIALIDOCIOUS
all bloomin wrong then ?[:0]
RE-HAB IS FOR QUITTERS.
-
"put your left hand on the asdf keys put your right hand on the jkl; keys"
hahah that was the first thing i ever learned about typing :)
i took a test a while ago and i got 60 words per minute i think!
-
Guess what!
I have a new definition[:)]
No clues, I think you guys should get it.
Condition in which one allele of a pair is not fully dominant; a heterozygous phenotype somewhere between both homozygous phenotypes emerges.
-
its called she was sleeping with the milkman
-Meg
-
quote:
Originally posted by ariel
"put your left hand on the asdf keys put your right hand on the jkl; keys"
hahah that was the first thing i ever learned about typing :)
i took a test a while ago and i got 60 words per minute i think!
But only if you're using an English (US or UK) keyboard. Don't do that with French or German keyboards.
George
-
its called she was sleeping with the milkman
how the devil did you get this
quote:
Condition in which one allele of a pair is not fully dominant; a heterozygous phenotype somewhere between both homozygous phenotypes emerges.
from this
i didnt even get the question [xx(]
measure twice,cut once.
-
quote:
Originally posted by Ray hinton
its called she was sleeping with the milkman
how the devil did you get this
quote:
Condition in which one allele of a pair is not fully dominant; a heterozygous phenotype somewhere between both homozygous phenotypes emerges.
from this
i didnt even get the question [xx(]
measure twice,cut once.
As far as I understand the question, it is asking what you call a trait that is somewhere between what you inherited from your mother and what you inherited from your father (e.g. tall father, short mother, child somewhere mid height).
Don't ask me what it's called though.
George
-
come on guys! imagine a red flower crossed with a white on and it made a pink one!
now..that wouldnt be complete dominance...it would be................... : ________________
-
and what george said sounds about right to me :]
-
OK, after a little hunting around on Wikipedia (is that cheating?), the word I have come up with is codominance or incomplete dominance.
http://en.wikipedia.org/wiki/Dominant_gene
quote:
Codominance/ Incomplete Dominance
In certain cases, a "blend" of genes will occur because neither of the two genes of a genotype are dominant over the other. As an example, in blood cells, the trait for blood type has three different alleles: type A, type B, or type i, with i being recessive. If a father passes a gamete with the allele of type A and the mother passes on type B, then codominance results, with the offspring being type AB since neither allele type dominates the other.
Incomplete dominance occurs when certain of the recessive gene appears within the phenotype of the organism, causing a blend in between both the dominant and recessive gene.
http://en.wikipedia.org/wiki/Incomplete_dominance
quote:
n genetics, dominance relationships control whether an offspring will inherit a characteristic from the father, the mother, or some blend of both. More technically, they control the ways genes interact to express themselves as phenotypes in a diploid or polyploid individual.
There are three kinds of dominance relationships:
- Simple dominance
- Incomplete dominance
- Co-dominance
Incomplete dominance
In incomplete dominance, a heterozygous genotype creates an intermediate phenotype. In this case, both the dominant and recessive gene are expressed, creating a blended or combined phenotype. A cross of two intermediate phenotypes can result in the reappearance of either the parent phenotypes or the blended phenotypes.
The classic example of this is the colours of carnations.
---- R --- r
R -- RR -- rR
r -- Rr --- rr
R is the gene for red pigment. r is the gene for no pigment.
Thus, RR offspring make a lot of red pigment and appear red. rr offspring make no red pigment and appear white. Rr and rR offspring make a little bit of red pigment and therefore appear pink.
An example of incomplete dominance in humans is mordan, a trait that is exhibited when eye color alleles from the maternal and paternal chromosomes are blended. This usually occurs when one parent has green eyes and the other parent has brown eyes–the child will have dark blue eyes.
Co-dominance
In co-dominance, neither phenotype is dominant. Instead, the individual expresses BOTH phenotypes. The most important example is in Landsteiner blood types. The gene for blood types has three alleles: A, B, and i. i causes O type and is recessive to both A and B. When a person has both A and B, they have type AB blood.
Another example involves cattle. If a homozygous bull and homozygous cow mate (one being red and the other white), then the calves produced will be roan-colored, with a mix of red and white hairs.
Example Punnett square for a father with A and i, and a mother with B and i:
---- A --- i
B -- AB - B
i –- A --- O
Amongst the very few co-dominant genetic diseases in humans, one relatively common one is A1AD, in which the genotypes Pi00, PiZ0, PiZZ, and PiSZ all have their more-or-less characteristic clinical representations.
George
-
WAHOOOO!
[:D][:D][:D]
hooray george-
the word was
incomplete dominance
[:)]
-
isnt the english language great,it is my mother tongue,but i understand and speak more french,german,danish,spanish,and nearly as much serbo-croat,if this page is anything to go by,i wish i had paid more attention at school,act in haste,repent at leisure,as some one once said.
measure twice,cut once.
-
quote:
Originally posted by Ray hinton
isnt the english language great,it is my mother tongue,but i understand and speak more french,german,danish,spanish,and nearly as much serbo-croat,if this page is anything to go by,i wish i had paid more attention at school,act in haste,repent at leisure,as some one once said.
measure twice,cut once.
Stick around – you'll pick it up.
The few months I've been here, and had occasion to debate with all sorts of people about all sorts of things has taught me a lot.
George
-
puedo hablar un poco espanol
no muy bien
ustedes estan listos?
the new definition is
Processes leading to the natural death of an organism or to parts of it (e.g., leaves).
-
Are you trying to make these too easy? [:)]
I assume you mean atrophy, although words like apoptosis or necrosis might have a related meaning, although more specific in nature.
PS. Don't expect me to understand the Spanish – now if that was Hungarian or German, then I might have a fighting chance (although I am not particularly fluent in either, but certainly better than my Spanish).
George
-
como porqué tan es difícil, intente algo, donde el KFC más cercano.[:D][:D]
measure twice,cut once.
-
hmm...
ok
as...why...so is difficult. try something closer to KFC??
haha i said no muy bien when it comes to me and spanish!
again, sorry for these amiguous words [:(][:(]
but the one i have in mind here starts with an
"S"
so anymore guesses?
-
The word that seems closest is senescence. To me, it seems more the study of ageing, although arguably ageing is the process of natural death.
George
-
quote:
sorry for these amiguous words
From Latin ambiguus, uncertain, from ambigere, to go about : amb-, ambi-, around; see ambi- + agere, to drive; see ag- in Indo-European Roots.] [}:)]
just clearing up any ambiguity there, [:p] [:D]
its the drugs,y-know.
-
I can't believe you had to use Wiki to come up with codominance. I thought everyone knew that. [:)]
-
quote:
Originally posted by another_someone
The word that seems closest is senescence. To me, it seems more the study of ageing, although arguably ageing is the process of natural death.
George
YES!
[:D]
it was senescence
OK
is it already time for the next definition?
yup!
Short, filamentous protein projecting above cell wall to help it adhere to surfaces.
-
quote:
I can't believe you had to use Wiki to come up with codominance. I thought everyone knew that.
Doc you've been very quiet recently , what happened did someone break your dam
Michael
-
Michael - I've had a lot on my plate.
-
connective growth tissue ?[8)]
its the drugs,y-know.
-
no,
heres the hint for this one
Short, filamentous protein projecting above cell wall to help it adhere to surfaces.
starts with a P!
-
pneumonoultramicroscopicsilicovolcanoconiosis'!!!
damn i love that word,hate typing it though.
its the drugs,y-know.
-
Ray, just put "miner's lung" instead [:D]
-
i put in three massive words the other day, all with my "one finger method"took me about ten minutes,guess what,they were wrong [V]
its the drugs,y-know.
-
its only 5 letters [:D]
plural its only 4!
-
i cant spell minors leung !
its the drugs,y-know.
-
hey look, I got it to work!
Hooray![:D]
(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fi11.photobucket.com%2Falbums%2Fa196%2Fbariel%2F25_1_89.gif&hash=572b4e2ed7f939edddbd22971cb861d3)
-
clever ole you,im gonna find a much flashier one, he he.
its the drugs,y-know.
-
the one above...looks like a smiley wearing ear-muffs...
i just recently realized it was the smiley's hair!
-
quote:
Originally posted by ariel
the one above...looks like a smiley wearing ear-muffs...
i just recently realized it was the smiley's hair!
I thought it was that bint from Star Wars