Genetics and Developmental Biology

HELP ME are those correct

HELP ME are those correct

DNA markers, or variant non-coding regions of DNA, are DNA polymorphisms that are useful for genetic mapping.
Answer
·     

•     True
  ·          False
  
  A m

fanaan   312   N/A

fanaan

Number of phnotypic classes for a x-linked trait

Number of phnotypic classes for a x-linked trait

So I'm trying to figure the number of phenotypic classes that can occur in an F1xF1 cross of 2 different parents one the female being homozygous w,m,f and the male being WT. This is occurring on the 1st chromosome of the D. melanogaster so it is

xxfire459xx   247   N/A

xxfire459xx

Genetic Linkage and Map DIstance?

Genetic Linkage and Map DIstance?

Can you help me answering these questions?

joebob   418   N/A

joebob

help urgent

help urgent

4. The diagram below outlines a molecular test to determine if individuals have the sickle-cell allele. First the region is amplified by PCR and then digested with a restriction enzyme. The two primers are located just to the left of the “1” site and

toodaloo   314   N/A

toodaloo

help with genetics problem

help with genetics problem

(attached pic)
5. Below is an STR profile for four loci: D8S1179, D21S11, D7S820 and CSF1P0. In the figure below, the upper panel shows all of the identified alleles in the human population (eg. the D8S1179 locus has 12 different alleles) and th

toodaloo   616   N/A

toodaloo

people how do you do this genetics problem

people how do you do this genetics problem

You have 4 primers that can be used for PCR amplification of a 3000 bp plasmid. The locations of the 5’-end of each 20-nucleotide primer is shown in the diagram below. What will be the size of the PCR product when the following pairs of primers are u

toodaloo   311   N/A

toodaloo

The table shown lists the approximate new mutation rates for three autosomal dom

The table shown lists the approximate new mutation rates for three autosomal dom

The table shown lists the approximate new mutation rates for three autosomal dominant human diseases.
Trait    Mutations per 106 gametes
Retinoblastoma (tumor of the retina)   20
Achondroplasia (statural dwarfism) 

LAN14DR   2734   N/A

LAN14DR

An AABbccDdEeFF individual is crossed with an individual with the genotype AaBBC

An AABbccDdEeFF individual is crossed with an individual with the genotype AaBBC

Question: An AABbccDdEeFF individual is crossed with an individual with the genotype AaBBCCDdEeff. What is the probability that their offspring will have the genotype AaBBCcddEEFf?

Can someone help and explain how to figure this ou

nsch22   478   N/A

nsch22

Need help with plating bacteria colonies

Need help with plating bacteria colonies

Ok no matter how many times i am explained this it makes no sense and its not in the book i use so i have nowhere to turn, can anyone help me understand whats happening with these plates  it looks like a bunch of dots to me i don't see h

centimetergrove   263   N/A

centimetergrove

Predict the phenotypic ratio that would occur for a polygenic trait involving th

Predict the phenotypic ratio that would occur for a polygenic trait involving th

Predict the phenotypic ratio that would occur for a polygenic trait involving three loci in which both parents were heterozygous at all three loci. 

jhmlton6   337   N/A

jhmlton6

Familial hypercholesterolemia was evaluated in a population by computing the reg

Familial hypercholesterolemia was evaluated in a population by computing the reg

Familial hypercholesterolemia was evaluated in a population by computing the regression coefficient for individuals of various relationships.  Calculate the heritability of each of the following relationships. 

Relationship             

CSDCUO   334   N/A

CSDCUO

The correlation coefficients for height were determined for 15 pairs of individu

The correlation coefficients for height were determined for 15 pairs of individu

The correlation coefficients for height were determined for 15 pairs of individuals with the following genetic relationships:

Relationship            Correlation Coefficient      Heritability

Mother/daughter:              0.36            
Mother/

CSDCUO   364   N/A

CSDCUO

A certain human trait is determined by five unlinked pairs of alleles, with each

A certain human trait is determined by five unlinked pairs of alleles, with each

A certain human trait is determined by five unlinked pairs of alleles, with each dominant allele having an additive effect on the phenotype. 

A.  How many phenotypic classes would you predict, and in what frequencies, from a cro

CSDCUO   323   N/A

CSDCUO

. You are studying a genetic disorder and find 63 affected siblings in a total

. You are studying a genetic disorder and find 63 affected siblings in a total

.  You are studying a genetic disorder and find 63 affected siblings in a total of 741. The population prevalence of the disorder has been estimated to be 0.0037.  Calculate the sibling recurrence risk. 

CSDCUO   258   N/A

CSDCUO

In human gestational develop, abnormalities of the closure of the lower part of

In human gestational develop, abnormalities of the closure of the lower part of

In human gestational develop, abnormalities of the closure of the lower part of the midface can result in cleft lip, if the lip alone is affected by the closure defect, or in cleft lip and palate (the roof of the mouth), if the closure defect is more

CSDCUO   382   N/A

CSDCUO

tRNAs involved in the process occupy a series of sites on the complexed chromoso

tRNAs involved in the process occupy a series of sites on the complexed chromoso

Once elongation is underway, tRNAs involved in the process occupy a series of sites on the complexed ribosome. The occupation of sites occurs in the following order.

Post Merge: 10 years ago

A site, P s

ashlynmarie19   760   N/A

ashlynmarie19

Sex Linked Traits, Punnett squares, pedigrees?

Sex Linked Traits, Punnett squares, pedigrees?

In cats, an x-linked pair of alleles, B and B', determines the color of fur. The allele "B" for yellow is codominant with B' for black so that BB' cats are tortoise shelled, a

vafyfe   423   N/A

vafyfe

Sex linked traits, Two Genes, Two Traits, Complete Dominance

Sex linked traits, Two Genes, Two Traits, Complete Dominance

A corn plant that originated from a purple, starchy seed is cross pollinated with a plant that originiated form a yellow, sweet seed. The seeds on a cob from the resulting cross exhibit the following numbers: Purple, starchy --104; Purple, sweet --96

vafyfe   562   N/A

vafyfe

Interpretation of Tajimas and Wattersons θ theta

Interpretation of Tajimas and Wattersons θ theta

I need help in interpretation of  Tajimas and Wattersons θ theta values calculated for DNA sequences. Avarage values =

Theta Wattersons:

0,003516526
0,003308895
0,003252474
0,002339263

Tajimas:

gacek758   514   N/A

gacek758

When are the major regulatory points in the cell cycle?

When are the major regulatory points in the cell cycle?

early G1 phase (M/G1 checkpoint)
late G1 phase (G1/S checkpoint)
S phase (S checkpoint)
early G2 phase (S/G2 checkpoint)
late G2 phase (G2/M checkpoint)
M phase (M checkpoint)

multiple may be selected

th

lta343   999   N/A

lta343

Design a yeast strain that would turn blue when fed...... Please help!

Design a yeast strain that would turn blue when fed...... Please help!

1.   Design a yeast strain that would turn blue when fed medium that contains hydrolyzed rice and beans (hydrolysis breaks proteins down to their constituent amino acids) plus threoninol and X-gal.  Draw the structure of the gene/mRNA that will gi

fecster   553   N/A

fecster

How do the eight palindromes in the male specific region of the Y chromosome (MS

How do the eight palindromes in the male specific region of the Y chromosome (MS

How do the eight palindromes in the male specific region of the Y chromosome (MSY) prevent the chromosome degeneration that one would predict on the basis of Muller’s ratchet?  What role has inversions played in the development of the MSY? 

Dextor   344   N/A

Dextor

A cross was made to produce D. melanogaster flies heterozygous for two pairs of

A cross was made to produce D. melanogaster flies heterozygous for two pairs of

A cross was made to produce D. melanogaster flies
heterozygous for two pairs of alleles: A and a, which
determine long versus short wings, and B and b, which
determine gray versus ebony body color. The following F2
data were obtai

bishoy93   420   N/A

bishoy93

Calculate H2 for corolla length in Nicotiana.

Calculate H2 for corolla length in Nicotiana.

In Nicotiana, two inbred strains produce long (PL) and short (PS) corollas. These lines are crossed to produce F1, and the F1 are crossed to produce F2 plants in which corolla length and variance are measured. The table summarizes mean and variance o

tanker   3970   N/A

tanker

How to solve lac operon problem? HW due tomorrow midnight!! ><

How to solve lac operon problem? HW due tomorrow midnight!! ><

Hello!

I was wondering if someone can explain how to solve a lac operon problem? The attached picture is the one from our problem sets and the answers are right, I just don't understand how to get the answers. 

darwincalledit   415   N/A

darwincalledit

Probability that Kate & Clement's 1st child will be affected with rare disease?

Probability that Kate & Clement's 1st child will be affected with rare disease?

Kate and Clement (II-4 & II-5) met while attending a conference. Their pedigrees are shown below (see attached jpeg file). They both have a sibling who has a rare human metabolic disease. They fall in love at first sight but are anxious about hav

phyllidiela   271   N/A

phyllidiela

Given the pedigree below, what is the probability...?

Given the pedigree below, what is the probability...?

The pedigree illustrated below (see attached jpeg file) shows a rare autosomal recessive trait. What is the probability that a child of III-4 and III-5 will manifest the phenotype for this trait?

phyllidiela   423   N/A

phyllidiela

Draw a pedigree. Probability of 1st child to have sickle cell anemia?

Draw a pedigree. Probability of 1st child to have sickle cell anemia?

The autosomal gene for sickle cell anemia (ss) is prevalent among East Africans. Affected individual shave elongated and curved erythrocytes under low oxygen tension because of the polymerization of hemoglobin. Supposing heterozygotes for this gene i

phyllidiela   386   N/A

phyllidiela

Probability that II-1 is a carrier of the recessive allele?

Probability that II-1 is a carrier of the recessive allele?

The pedigree illustrated below shows an affected II-2 daughter with a recessive inborn error of metabolism. Let B and b represent the dominant and recessive alleles, respectively. What is the probability that II-1 is a carrier of the recessive allele

phyllidiela   773   N/A

phyllidiela

What abnormalities or defects during development can lead to a lack of sexual co

What abnormalities or defects during development can lead to a lack of sexual co

What abnormalities or defects during development can lead to a lack of sexual concordance at either the chromosomal gonadal or phenotypic level?

mreyes   1543   N/A

mreyes

An experiment was done to determine the linkage relationship of three genes (a,

An experiment was done to determine the linkage relationship of three genes (a,

An experiment was done to determine the linkage relationship of three genes (a, b, and c) in Drosophila melanogaster. Homozygous females phenotypically a, c were crossed with homozygous males phenotypically b. The F1 females were all wild-type in app

sagrawal1984   2082   N/A

sagrawal1984

Assume that during meiosis I, none of the C chromosomes disjoin at metaphase, bu

Assume that during meiosis I, none of the C chromosomes disjoin at metaphase, bu

Assume that during meiosis I, none of the C chromosomes disjoin at metaphase, but they separate into dyads (instead of monads) during meiosis II. Each resultant gamete participated in fertilization with a normal haploid gamete. What combinations will

JaeYang   1294   N/A

JaeYang

Theories in Science are just ideas that still need to be tested and supported

Theories in Science are just ideas that still need to be tested and supported

True!

Peyton   304   N/A

Peyton

Crossing lines with the same recessive phenotype What do you get from the result

Crossing lines with the same recessive phenotype What do you get from the result

Gene Interactions
You study color variants of Arabidopsis hypotheticus, a plant with red flowers. You have obtained three pure-breeding mutant lines, all named for their place of origin. Two lines have white flowers (Aberdeen White and Victoria

Nour   4683   N/A

Nour

Distance between shine delgarno and start codon affecting mRNA requirement?

Distance between shine delgarno and start codon affecting mRNA requirement?

Here's a question that I can't seem to grasp.

There are two mRNAs presented in the 5' to 3' direction, one of which belongs to strain A and the other one belonging to strain B.

Strain A's shine delgarno

Chadori   393   N/A

Chadori

Chromosome Problems

Chromosome Problems

Consider a diploid cell where 2n = 6. During metaphase I of meiosis, as the pairs of homologous chromosomes line up on the metaphase plate, each pair may orient with its maternal or paternal homolog closer to a given pole. There are four equally prob

BriannaG1996   531   N/A

BriannaG1996

Recombination and the Role of Chromosomal Exchange

Recombination and the Role of Chromosomal Exchange

I read my genetic book for this, but I can't seem to find the answers. Please help if possible.

PART A
The discernible difference in length between the two X chromosomes of the female fruit fly was important in Stern’s experimen

JaeYang   907   N/A

JaeYang

The binding of cAMP to the CAP protein involves numerous electrostatic interacti

The binding of cAMP to the CAP protein involves numerous electrostatic interacti

The binding of cAMP to the CAP protein involves numerous electrostatic interactions. Most of the interactions are hydrogen bonds between cAMP atoms and the side chains of various amino acids in the CAP protein.
Which of the following is a salt b

eli64   2341   N/A

eli64

In humans, a hypothetical trait is under the control of a single gene, A.

In humans, a hypothetical trait is under the control of a single gene, A.

In humans, a hypothetical trait is under the control of a single gene, A.  Four alleles have been found:  A1, which is dominant to all others;  A2, which is dominant to A3 and A4, which are codominant.

If gene A is on an au

jestevez13   840   N/A

jestevez13

Epistatic pathway construction

Epistatic pathway construction

Based on the epistatic interactions shown below, construct a genetic pathway for the regulation of geoduck siphon length.

gene   mutant phenotype   
sipple   long siphon
geyuk   long siphon
hnuk           long siph

xg3r4dx   448   N/A

xg3r4dx