Genetics and Developmental Biology

Feather color in parakeets is produced by the blending of pigments produced from two biosynthetic ...

Feather color in parakeets is produced by the blending of pigments produced from two biosynthetic ...

Feather color in parakeets is produced by the blending of pigments produced from two biosynthetic pathways shown below. Four independently assorting genes (A, B, C, and D) produce enzymes that catalyze separate steps of the pathways. For the question

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fodog414   13560   14 Replies

diane boladas

Radiation Resistance

Radiation Resistance

Deinococcus radiodurans is a bacterium that was isolated from cooling ponds in and around nuclear power plants. It is highly resistant to ionizing radiation. Propose a hypothesis to explain t

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selfstudy   6699   14 Replies

loula912

Study guide review genetics!

Study guide review genetics!

Got a big one here (40 questions!) don't have to answer all 40 but I would srsly appreciate it, if you do end up helping me out with 40 you can let me know of the ones you are unsure of. I am still working on the answers so I will update the pos

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Mateyman   264   15 Replies

bio_man

Use the partial deletion map and the table of progeny phenotypes to determine

Use the partial deletion map and the table of progeny phenotypes to determine

Use the partial deletion map and the table of progeny phenotypes to determine the order of genes on the chromosome.
Order the genes on the chromosome from left to right according to the diagram and data provided.

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azgg7   3588   15 Replies

Khaleel Plunkett

A geneticist from an alien planet that prohibits genetic research brought wi

A geneticist from an alien planet that prohibits genetic research brought wi

A geneticist from an alien planet that prohibits genetic research brought with him two true-breeding lines of frogs. One line croaks by uttering “rib-it rib-it” and has purple eyes. The other line croaks by muttering “knee-deep knee-deep” and has gre

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lolpp   3245   15 Replies

gwadalows and highs

How do bacteria regulate transcription of these operons? (Mastering Genetics)

How do bacteria regulate transcription of these operons? (Mastering Genetics)

The question is about regulation of model operons.
The trp and lac operons are regulated in various ways. How do bacteria regulate transcription of these operons?
Sort the statements into the appropriate bins depending on whether or not eac

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KC53   36943   15 Replies

Helen91

Drag the appropriate tRNAs to the binding sites on the ribosome to show the conf

Drag the appropriate tRNAs to the binding sites on the ribosome to show the conf

Instructions;

"Drag the appropriate tRNAs to the binding sites on the ribosome to show the configuration immediately before a new peptide bond forms. If no tRNA is bound to a site at that time, leave that binding site empty"

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ivanvonivanson   12525   15 Replies

tabs

Recombination in a Dihybrid Cross

Recombination in a Dihybrid Cross

You have screened for several new recessive mutations in a species of wasp.
Wasps homozygous for apricot (aa) have pale orange eyes. (Wild-type eyes are brown.)
Wasps homozygous for blunt (bb) have short wings. (Wild-type wings are long.)

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nat214   6931   15 Replies

yabadabadooo

You have obtained three pure-breeding mutant lines, all named for their place of origin. Two lines h

You have obtained three pure-breeding mutant lines, all named for their place of origin. Two lines h

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 White), and one has yel

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Sdoggggy   17437   15 Replies

Angeliki Koufou

identify the possible genotypes of children of this couple by specifying PCR??

identify the possible genotypes of children of this couple by specifying PCR??

Identify all the possible genotypes of children of this couple by specifying PCR fragment lengths in each genotype.

16 / 16
16 / 26 <<<
21 / 26 <<<
18 / 18
26 / 26
18 / 26 <<<
16 / 1

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fodog414   4378   15 Replies

biostudent77

Who is the father of Snowball

Who is the father of Snowball

Here is a question from my bio homework:

At a local buffalo farm an albino calf named Snowball is born. Snowball is the first albino buffalo born to this herd. The allele for albinism is recessive to the allele for normal coloration. Snowb

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jessicawcu   6770   15 Replies

THAVY VANTHON

Mastering Genetics: Transcription and RNA Processing

Mastering Genetics: Transcription and RNA Processing

Transcription and RNA Processing
During transcription, RNA polymerase synthesizes RNA from a DNA template with the help of accessory proteins. In this tutorial, you will review the steps of transcription in eukaryotes and bacteria and investigat

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deboss_18   91625   15 Replies

lexie.jacquez

MasteringBIO: Calculating allele frequencies in a gene pool

MasteringBIO: Calculating allele frequencies in a gene pool

In the beetles described in the animation, there were two alleles for color, brown and green. Suppose that you discover a very small population of these beetles, consisting of the individuals shown below. How can you calculate the frequency of each a

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tatda   38802   15 Replies

Jackie Farolan

Do you think we will be considered stupid after 2000 years?

Do you think we will be considered stupid after 2000 years?

Won't they study the US and see it's world dominance and wars over oil,and whatever happens to us?
Will they study the last two decades and how the computer and the internet evolved?We are storing away everything in large files on the

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leobato   939   15 Replies

Alexx

Determining genotypes in autosomal dominant pedigrees Pedigree 2 from Part A is

Determining genotypes in autosomal dominant pedigrees Pedigree 2 from Part A is

Determining genotypes in autosomal dominant pedigrees
Pedigree 2 from Part A is shown below. Recall that this pedigree shows the inheritance of a rare, autosomal dominant condition.
Fill in the genotypes for the indicated individuals in the

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shasha1033   6491   16 Replies

Melissa Prieto

How is genetic code read?

How is genetic code read?

If genetic info is read going down, as in ATGGCC, etc, what about the other half of the ladder? because each base has a pair, so how can you just read one row down to see the genetic code?

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EvaRL   2578   16 Replies

Biochembiochem

Mastering Genetics: Determine the wild type RNA sequence

Mastering Genetics: Determine the wild type RNA sequence

A fragment of a wild-type polypeptide is sequenced for seven amino acids. The same polypeptide region is sequenced in four mutants.
Wild-type N . . . Thr-His-Ser-Gly-Leu-Lys-Ala . . . C polypeptide
Mutant 1 N . . . Thr-His-Ser-Val-Leu-Lys

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srmtrc   9085   16 Replies

rmm5918

Making eye blind for 7 days.

Making eye blind for 7 days.

I want to cover my eye for entire week with something that will keep it dark as crack. After a week. I want to check whether there is difference between eyes (don't tell what, don't spoil it!). When I keep my right eye under darkness for a

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RikTelner   1007   16 Replies

bio_man

Determining parental and F1 genotypes in crosses involving polygenic inheritance

Determining parental and F1 genotypes in crosses involving polygenic inheritance

Below is the information we got for this question and there is an attachment showing the options we got:

You decide to designate the alleles of the four loci as either additive (contributing to fruit segment number and represented by a sup

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FusedMentality   11330   16 Replies

hoonahroosh

About plant mutation

About plant mutation

The original strain (wild type; WT) and two mutant strains of plant X are available, mutant A (mutA) and mutant B (mutB). Dr. Mishima started Experiment 2 with all three strains growing together in a flower bed. The seeds for all three strains are “t

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fan198   526   17 Replies

Anonymous

Comparing wild-type and mutant fruit flies! HELP?

Comparing wild-type and mutant fruit flies! HELP?

Comparing wild-type and mutant fruit flies
Two different Drosophila flies (fruit flies), fly A and fly B, are shown below.

Classify each phrase or term as applying to fly A only, fly B only, or both fly A and fly B.
Drag each phr

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hunter4565   37524   17 Replies

McKenzie Monk

Drosophila melanogaster, the fruit fly, has a 2n chromosome number of 8. Assume

Drosophila melanogaster, the fruit fly, has a 2n chromosome number of 8. Assume

Drosophila melanogaster, the fruit fly, has a 2n chromosome number of 8. Assume that you are microscopically examining the mitotic and meiotic cells of this organism. You note that in the female, two chromosomal pairs are metacentric and two pairs ar

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colleen   2842   17 Replies

bri09

UC Berkeley Genetics Final

UC Berkeley Genetics Final

Has anyone taken the genetics final?  I am working on my last few modules and was hoping for some study tips.  John Placky is my current professor, but I would be interested in any information.

Thanks!

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jessicawcu   4985   17 Replies

ikandy408

Genetics -- Recombination Frequencies & Gene Mapping

Genetics -- Recombination Frequencies & Gene Mapping

I got an answer (12,5,17) but I want to confirm... I am a bit uneasy -- I tend to get 16.4 instead of 17?

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zgrami   34091   17 Replies

elaissia

Genetics/ Hox genes

Genetics/ Hox genes

For many of the mammalian Hox genes, it has been possible to determine that some of them are more similar to one of the insect HOM-C genes than to the others. Describe an experimental approach using the tools of molecular biology that would allow suc

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ela   5460   17 Replies

ikandy408

Intestinal stem cell overproliferation

Intestinal stem cell overproliferation

Intestinal stem cell overproliferation (ISCO) is a condition found in several human populations. The concentration of the Isco protein in intestinal cells (these include the stem cells that reside in the inner region of the tube) is higher in ISCO in

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fan198   458   18 Replies

Anonymous

A pair-rule gene in Drosophila called runt controls some of sex and nervous syst

A pair-rule gene in Drosophila called runt controls some of sex and nervous syst

A pair-rule gene in Drosophila called runt controls some of sex and nervous system formation. In the mouse, runt controls blood cell formation, osteogenesis, and genital structures. In humans, the analog of runt, when mutated, causes children to lack

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mikael   1505   18 Replies

Divya Patel

Embryology Notes

Embryology Notes

The notes are in correlation with The Developing Human: Clinically Oriented Embryology 8th edition by Keith Moore

Here is Ch.2

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swoljaswol1   5575   18 Replies

callegurl92

Calculating probabilities in pedigrees

Calculating probabilities in pedigrees

Individuals III-3 and III-4 are expecting their first child when they become aware that they both have a family history of this recessive condition. As their genetic counselor, you can calculate the probability that they are carriers and that their c

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jessiijessii   60492   19 Replies

Emilia Diaz

Identify the locations of promoter consensus sequences and of the transcription termination sequence

Identify the locations of promoter consensus sequences and of the transcription termination sequence

Identify the locations of promoter consensus sequences and of the transcription termination sequence for the gene transcribed in bacterium (top diagram) and in an eukariyote (bottom diagram).

Drag the appropriate labels to their respcetive

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ekrieger   7545   20 Replies

scott95

Below is a pedigree of a fairly common human hereditary trait in which the boxes

Below is a pedigree of a fairly common human hereditary trait in which the boxes

Below is a pedigree of a fairly common human hereditary trait in which the boxes represent males and the circles represent females. Shading symbolizes the abnormal phenotype.
 
Given that one gene pair is involved:
(a) Is the inherita

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colleen   4121   20 Replies

itojo

Species-accumulation curves

Species-accumulation curves

PICTURES ARE ATTACHED:
Q9. Examine the following statements about species-accumulation curves and check all that are true.
a-Accumulation curves are used to estimate local or alpha diversity.
b-Accumulation curves increase linearly as

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gh1991   30507   20 Replies

Kendra Brown1

The chemical structure of DNA and its nucleotides (Part

The chemical structure of DNA and its nucleotides (Part

The DNA double helix is composed of two strands of DNA; each strand is a polymer of DNA nucleotides. Each nucleotide consists of a sugar, a phosphate group, and one of four nitrogenous bases. The structure and orientation of the two strands are impor

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hotthot12   5910   21 Replies

azaidi5

A valid conclusion based on the pedigree is that

A valid conclusion based on the pedigree is that

A valid conclusion based on the pedigree is that..

a) individual II-3 is unable to father children with type B blood
b) individuals I-1 and I-2 both carry allele i
c) individuals II-2 and III-4 are both homozygous for blood type

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cdavey   6159   21 Replies

exodustesfaye

What is the probability of obtaining a blue parakeet when two green heterozygous parakeets...

What is the probability of obtaining a blue parakeet when two green heterozygous parakeets...

Question one:
Feather colour in pararkeets is controlled by two genes. For one pigment gene, the B allel produces blue colour and the b allele does not produce any colour. For the other pigment gene, the Y allel produces yellow colour and the y

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peaches+cream   4615   22 Replies

humamk7206

Determine the sequence of the DNA duplex that encodes this mRNA segment.

Determine the sequence of the DNA duplex that encodes this mRNA segment.

The following is a portion of an mRNA sequence:
3'-AUCGUCAUGCAGA-5'


5' -> 3' Template strand?
3' -> 5' Coding strand?

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THOMASL29   4885   23 Replies

krwhitmer

Recombination and Linkage Mapping

Recombination and Linkage Mapping

Recombination in dihybrid crosses
You have screened for several new recessive mutations in a species of wasp.

    Wasps homozygous for apricot (aa) have pale orange eyes. (Wild-type eyes are brown.)
    Wasps

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sjohn092   50798   23 Replies

Emma Nye

Assume that a culture of E. coli was grown for approximately 50 generations in 1

Assume that a culture of E. coli was grown for approximately 50 generations in 1

Assume that a culture of E. coli was grown for approximately 50 generations in 15N (provided in the medium in the ammonium ion), which is a heavy isotope of nitrogen (14N). You extract the DNA from the culture, and it has a density of 1.723 gm/cm3 (w

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colleen   5909   24 Replies

amerced8

People with nail­patella syndrome have poorly developed or absent kneecaps and nails. Individuals w

People with nail­patella syndrome have poorly developed or absent kneecaps and nails. Individuals w

36.People with nail­patella syndrome have poorly developed or absent kneecaps and nails. Individuals with alkaptonuria have arthritis as well as urine that darkens when exposed to air. Both nail­patella syndrome and alkaptonuria are rare phenotypes.

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sonya36   4270   26 Replies

School Email

Determining parental and F1 genotypes in crosses involving polygenic inheritance

Determining parental and F1 genotypes in crosses involving polygenic inheritance

You decide to designate the alleles of the four loci as either additive (contributing to fruit segment number and represented by a superscript “+”) or non-additive (not contributing to fruit segment number and represented by a superscript “0”). Using

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KendraJo   9314   26 Replies

Daryam Galan