Genetics and Developmental Biology

The Recent Resurgence Of Long Supressed Evidence That Glockomeyoma Is Palamenic

The Recent Resurgence Of Long Supressed Evidence That Glockomeyoma Is Palamenic

It has finally come to light:

http://www.animaleyecare.net/diseases/glaucoma.htm

NeoshadowXC   1620   N/A

NeoshadowXC

A few doubts regarding Heart (Atrial) Embryology...

A few doubts regarding Heart (Atrial) Embryology...

HI GUYS 

1. What is the developmental significance of both the Atrial appendages, i.e. what is the reason for their presence?  What I mean is, is it just to increase its volume as man has more oxygen and nutritional require

the13thhokage   1297   N/A

the13thhokage

Anyone have a download link for the solutions man.

Anyone have a download link for the solutions man.

Hi looking for a download link to the solutions book for Introduction to genetic analysis tenth edition

Jthomas32090   3257   N/A

Jthomas32090

IS small sex organ a recessive or dominant trait in Genetics?

IS small sex organ a recessive or dominant trait in Genetics?

This is for my SCIENCE HOMEWORK. My genetics teacher wanted us to go out and find the answer. HELP?

Sm4450   4440   N/A

Sm4450

why is it easier to study products of meiosis in fungi than in plants andanimals

why is it easier to study products of meiosis in fungi than in plants andanimals

why is it far easier to study the products of meiosis from a single meiocyte in fungi, as compared to plants or animals?

moe6141   743   N/A

moe6141

I have no clue where to start.

I have no clue where to start.

Theodore was a highly inbred handsome rat with a very long tail (30 cm), while his equally
inbred yet striking mate, Spacey, had a petite tail (6 cm). When Theodor and Spacey had their
first litter, all had 18-cm tails. When the babies grew

BioMajor17   1448   N/A

BioMajor17

Transmission Ratio Distortion

Transmission Ratio Distortion

Transmission Ratio Distortion is the inheritance of genes in a non-mendelian ratio.
Also known as meiotic drive..

Can anyone give me some of the general characteristics of a TRD system?
Thank you in advance!

crmilano   485   N/A

crmilano

how to analyse PCR

how to analyse PCR

The question asks  to calculate the tandem repeats in the D1S80 allele. i plotted the graph but im not sure what to do from there.
next question asks to be figure outhow many diffferent classes of homozygous and heterozygous exist?
an

julle12345678   544   N/A

julle12345678

help analyzing this paragraph from journal article

help analyzing this paragraph from journal article

In this journal "Evolutionary History and Adaptation from High-Coverage Whole-Genome Sequences of Diverse African Hunter Gatherers" by Lachance et. al , I am having a hard time trying to figure out what this certain section is saying.

omgwtfitsp   640   N/A

omgwtfitsp

restriction mapping

restriction mapping

here is the data, i figured out that there is three overlaps in the Hind3 and EcoR1 at the 21200 and the 350 mark and the 2700 mark. that means it was cut twice? but after that i dont know where to go.

EcoR1        &nbs

julle12345678   634   N/A

julle12345678

A mutation in which gene could be responsible for this biosynthetic auxotroph

A mutation in which gene could be responsible for this biosynthetic auxotroph

One of my mutants [EMS-mutagenized, ampicillin enriched, 99.9% killing] grew only [! only] on a plate containing arginine, aspartate, proline, glutamic acid, inositol, and ornithine. I've spent hours trying to find out where the mutation might b

KLOB   742   N/A

KLOB

Dual Luciferase Reporter Gene Assays

Dual Luciferase Reporter Gene Assays

The accuracy of reporter assays can be improved by utilizing a dual reporter system. One of the reporter genes is correlated with the promoter of interest and is used to assess the effects of specific experimental conditions, while the second reporte

MarkHolland   493   N/A

MarkHolland

mutation-selection balance

mutation-selection balance

I'm having problems figuring out the logic behind two formulas related to the Hardy-Weinberg equation. Here are two relevant excerpts from my textbook, Medical Gentics by Jorde, Carey and Bamshad:

Consider, for example, a domin

Tomato   577   N/A

Tomato

Tetrad analysis and Perkins formula

Tetrad analysis and Perkins formula

Hi I'm currently taking genetics at my school and the section on haploid genetics (i.e. Neurospora) has me dazed. Can anyone explain clearly how tetrad analyis works, what PD,NPD,T all represent and how they all come together in the so-called Pe

dreamh317   2584   N/A

dreamh317

Calculate relatedness

Calculate relatedness

Is it possible to calculate the relatedness between family members(consanguineous) if you have the genotypes at all positions on te chromosomes.

Let me try to explain what I'm doing now:

A person can have 3 types of genotyp

Thuur   685   N/A

Thuur

translate this into protein using the genetic code table.

translate this into protein using the genetic code table.

Below is a sequence of double stranded DNA from a bacterium.  Based on what you know about bacterial transcription and translation, put an “X” next to the strand that is most likely to be the template strand for transcription and give a brief an

asjd11   612   N/A

asjd11

Creation of CFTR Knockout Embryonic Stem Cells by Positive-Negative Selection

Creation of CFTR Knockout Embryonic Stem Cells by Positive-Negative Selection

I am having trouble understanding what is going on here. What I got thus far is that the more preferred fate is Homologous recombination (targeted approach). Next, you basically plate the ES cells that are both neomycin & ganciclovir resistant (h

willuhelp   369   N/A

willuhelp

Creation of CFTR Knockout Mice by Injection of KO ES Cells into a Blastocyst

Creation of CFTR Knockout Mice by Injection of KO ES Cells into a Blastocyst

I'm really having a tough time with this KO mouse concept. If anyone could explain what is going on in each step, this would really help me.

willuhelp   423   N/A

willuhelp

One result of X-linkage is a crisscross pattern of inheritance in which

One result of X-linkage is a crisscross pattern of inheritance in which

One result of X-linkage is a crisscross pattern of inheritance in which sons express recessive genes of their fathers and daughters express recessive genes of their mothers.

a.   True
b.   False

Post Merge: [time]1

Bella0415   2460   N/A

Bella0415

One strand of a fragment of duplex DNA has the sequence 5'-A-T-C...

One strand of a fragment of duplex DNA has the sequence 5'-A-T-C...

Hey everybody have a few questions.

Part E what enzyme catalyzes the reaction in part D

Part F what type of bond joins one strand of DNA duplex to the other strand.

Part H
What term is used to describe the patter

fodog414   10538   N/A

fodog414

Linkage Relationship

Linkage Relationship

In a transformation experiment, donor DNA was obtained from a prototroph bacterial strain (a + b + c +), and the recipient was a triple auxotroph (a − b − c −). What general conclusions can you draw about the linkage relationships among the three gen

crw09e   2492   N/A

crw09e

Genetic Map & Interference

Genetic Map & Interference

Two theoretical genetic strains of a virus (a − b − c − and a + b + c +) were used to simultaneously infect a culture of host bacteria. Of 10,000 plaques scored, the following genotypes were observed. Determine the genetic map of these three genes on

crw09e   2580   N/A

crw09e

cDNA vs genomic libraries

cDNA vs genomic libraries

The first genomic library ever made was for the beta-globin gene taken from human genomic dna of the reticulocytes.
the library was done by using a partial digestion of the genome via restriction enzymes.
[ a partial digest is done by not

ehd123   654   N/A

ehd123

cdna vs genomic library

cdna vs genomic library

The first genomic library ever made was for the beta-globin gene taken from human genomic dna of the reticulocytes.
the library was done by using a partial digestion of the genome via restriction enzymes.
[ a partial digest is done by not

ehd123   957   N/A

ehd123

Fusion of two mutant haploid cells to produce a cell that grows on minimal media

Fusion of two mutant haploid cells to produce a cell that grows on minimal media

I have attached the question(#25).Can someone please explain this conceptually.I know it has to do with complementation.

s2kmanny   472   N/A

s2kmanny

need help please

need help please

1- Baur and Shull crossed broad-leaved females of the plant species Lychnis alba to narrow-leaved males and obtained an F1 consisting of males and females that were all broad leaved, but the F2 were of two kinds, broad-leaved and narrow-leaved. 

rony   638   N/A

rony

Flawed phylogeny reasoning

Flawed phylogeny reasoning

A scientist wanted to compare the evolution of the families Balaenopteridae (the rorqual baleen whales) and Delphinidae (the dolphins). Balenopteridae consist of about 11 species while Delphidae consist of about 41 species. The scientist proposes the

beardy   2295   N/A

beardy

Paraphyletic groups

Paraphyletic groups

Which of these are paraphyletic groups?

Reptiles
Trees
Apes
Birds
Plants
Whales
Fish
Seaweed
Dinosaurs
Prokaryotes
Eukaryotes
Invertebrates
Humans
Chimps
Warm-blooded An

beardy   407   N/A

beardy

Interpreting Cladograms

Interpreting Cladograms

Indicate whether each of these is plesiomorphic (ancestral) or apomorphic (derived) in the great ape lineage, using the phylogeny below. Great apes include orangutan, gorilla, chimp, and human.

[img width=350 height=261]http://i.imgur.com

beardy   440   N/A

beardy

EMERGENCY: Need help with UMUC Lab # 5 Genetic Inheritance

EMERGENCY: Need help with UMUC Lab # 5 Genetic Inheritance

Lab # 5
Genetic Inheritance

Section A: Patterns of Inheritance

Background Information
In the 19th century, a monk named Gregor Mendel conducted a series of experiments to determine how ‘traits’ or features of pea plant

Dave11   1372   N/A

Dave11

need help with confusing genetics problem

need help with confusing genetics problem

I can't figure out how to do the punnet square for any of this or what it all means? Can anyone please explain how to understand the solution? Looks like a bunch of letters and numbers to me.

Red-green color-blindness is an X-l

centimetergrove   473   N/A

centimetergrove

What is functional sequence evolution?

What is functional sequence evolution?

What is functional sequence evolution?

ehd123   222   N/A

ehd123

Genetics - Gene Mapping

Genetics - Gene Mapping

In Drosophila, four genes on the X chromosome are sites of recessive mutations causing yellow body (y), white eyes (w), miniature bristle (m), and small wings (sm). In a test cross of F1 triple heterozygous female (obtained by crossing two pure-breed

mfyda10   857   N/A

mfyda10

Heterozygous inversion test cross

Heterozygous inversion test cross

Below is a map of the Drosophila melanogaster X chromosome, giving the distances between adjacent genes in centiMorgans.  
 
sn-----------------lz------------v----------wy-----------m-------s------g
   6.7        

wyki   962   N/A

wyki

Indicate which allelic combinations each individual has

Indicate which allelic combinations each individual has

I know the answer already because the key was given but I don't know why the answer is what it is. I thought the progeny in generation III all had parental allelic combinations but that's not so. Why is that?

The answer is PPPRP

saneclarity   346   N/A

saneclarity

Linked genes are 50 M.U.'s apart. You will not recover >50% recombinants. Why?

Linked genes are 50 M.U.'s apart. You will not recover >50% recombinants. Why?

Here is the question:

If two genes are linked on a chromosome and over 50 map units apart, in theory you will not recover more than 50% recombinants, which is the same as independent assortment (genes on two different chromosomes). Using d

thinkgr33n   1506   N/A

thinkgr33n

DNA Statements Question

DNA Statements Question

Which of the following statements is NOT true?
 
a)DNA is composed of deoxynucleotides whereas RNA is composed of ribonucleotides.
b)Deoxyribose is a ribose with a missing oxygen atom at the 3’-carbon atom.
c)The A-T pairing is s

diamond3094   726   N/A

diamond3094

Distance between loci

Distance between loci

I was wondering whether the distance between loci ever change?

 For example if eye color was on gene A and pupil size on gene B, the distance between gene A and gene B is 50 cM. Is there a scenario where A and B is not 50?

My t

sokho   375   N/A

sokho

chromosomal basis question Please Help :)

chromosomal basis question Please Help :)

For an X-linked recessive trait, human females must be ___ for the recessive allele in order to express the trait.

1.hemizygous
2.homozygous
3.heterozygous
4.heterogametic
 
Humans

fanaan   1053   N/A

fanaan

Help please

Help please

Wild type, or wt, refers to the genotype that is the typical genotype found in nature. Now read that again. Once more. Now answer.
Answer

• True
   False
  
  
  I PCR out a mutated gene in a patient wi

fanaan   280   N/A

fanaan