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   1621   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

A baby is born with the genotype XYY. This sort of disorder is the result of non

A baby is born with the genotype XYY. This sort of disorder is the result of non

A baby is born with the genotype XYY. This sort of disorder is the result of nondisjunction during meiosis. In the case of the XYY genotype, can you be certain of which parent had the nondisjunction in their gamete? Explain your answer.

barry   1373   1 Reply

star

Suppose that mitosis was used to produce our gametes. What unique problems would

Suppose that mitosis was used to produce our gametes. What unique problems would

Suppose that mitosis was used to produce our gametes. What unique problems would be encountered?

barry   1343   1 Reply

duddy

What are the results of nondisjunction, and why are these chromosome alterations

What are the results of nondisjunction, and why are these chromosome alterations

What are the results of nondisjunction, and why are these chromosome alterations so detrimental to an individual?

barry   13326   1 Reply

duddy

A 42-year-old woman becomes pregnant. Her physician recommends amniocentesis (a

A 42-year-old woman becomes pregnant. Her physician recommends amniocentesis (a

A 42-year-old woman becomes pregnant. Her physician recommends amniocentesis (a test for fetal chromosomal disorders). When the results are analyzed by the laboratory, it is determined that the fetus has 47 chromosomes. Name and fully explain what ca

barry   1304   1 Reply

duddy

Suppose a researcher claims to be able to make a hybrid animal that is a cross b

Suppose a researcher claims to be able to make a hybrid animal that is a cross b

Suppose a researcher claims to be able to make a hybrid animal that is a cross between a goat and a horse. This animal has been termed "gorse." The normal diploid number for a goat is 60 and the normal diploid number for a horse is 62. Igno

barry   1242   1 Reply

duddy

Complete the following table concerning mitosis and meiosis: MitosisMeiosis I

Complete the following table concerning mitosis and meiosis: MitosisMeiosis I

Complete the following table concerning mitosis and meiosis:

   Mitosis   Meiosis I   Meiosis II
Is the starting parent cell diploid or haploid?         
Are the daughter cells diploid or haploid?         
Are the daughter cells genetically i

barry   1611   1 Reply

Crazyeagle567

Some t-RNA often contains sections of non-complimentary, unusual bases (i.e., ot

Some t-RNA often contains sections of non-complimentary, unusual bases (i.e., ot

Some t-RNA often contains sections of non-complimentary, unusual bases (i.e., other than U, C, A, and G) which are added after transcription. What area of the t-RNA would never contain such odd bases in a living organism?

barry   987   1 Reply

duddy

Why is DNA replication semi-conservative?

Why is DNA replication semi-conservative?

Why is DNA replication semi-conservative?

barry   1351   1 Reply

duddy

Explain why some people fear genetically modified foods despite commercial organ

Explain why some people fear genetically modified foods despite commercial organ

Explain why some people fear genetically modified foods despite commercial organization claims that these foods are safe for human consumption.

barry   1081   1 Reply

duddy

Genetically modified (GM) salmon have now been approved for sale in the United S

Genetically modified (GM) salmon have now been approved for sale in the United S

Genetically modified (GM) salmon have now been approved for sale in the United States. What concerns do you think people may have?

barry   921   1 Reply

duddy

The text says that bovine somatotropin can be given to cows to boost milk produc

The text says that bovine somatotropin can be given to cows to boost milk produc

The text says that bovine somatotropin can be given to cows to boost milk production. Suppose that it would be possible to alter the genes of cows so that the animals always made excess somatotropin. What concerns do you think people might have about

barry   851   1 Reply

duddy

Gene therapy is being explored as a means of permanently correcting a defective

Gene therapy is being explored as a means of permanently correcting a defective

Gene therapy is being explored as a means of permanently correcting a defective gene to cure a disease rather than to merely treat symptoms with drugs. Ideally it would be best to correct these defective genes before a baby is even born. But if it�

barry   677   1 Reply

duddy

Both DNA and RNA polymerases must be able to copy from a template strand with gr

Both DNA and RNA polymerases must be able to copy from a template strand with gr

Both DNA and RNA polymerases must be able to copy from a template strand with great accuracy. Still, either one can make mistakes that could lead to a mutation. For which one of these polymerases would a mistake be the most serious in the long term?

barry   775   1 Reply

duddy

The drug Humulin is a modified form of the human insulin protein that is used to

The drug Humulin is a modified form of the human insulin protein that is used to

The drug Humulin is a modified form of the human insulin protein that is used to treat diabetes. Describe the process that would allow a drug company to take this gene and, using bacteria, produce large amounts of this human protein.

barry   1041   1 Reply

duddy

Scientists study the genomes of many different living organisms besides humans.

Scientists study the genomes of many different living organisms besides humans.

Scientists study the genomes of many different living organisms besides humans. For example, organisms like fruit flies, yeasts, and mice are studied. Of what value is understanding the genes of a mouse in comparison to that of a human? Are the two e

barry   1874   1 Reply

duddy

An oncologist (a physician that specializes in cancer) compares two biopsy sampl

An oncologist (a physician that specializes in cancer) compares two biopsy sampl

An oncologist (a physician that specializes in cancer) compares two biopsy samples by looking at the percentage of cells in mitosis. Sample #1 has 15% of cells in mitosis and Sample #2 has 8% of cells in mitosis. These samples are of the same tissue

barry   1303   1 Reply

duddy

Explain why malignant tumors are more dangerous than benign tumors.

Explain why malignant tumors are more dangerous than benign tumors.

Explain why malignant tumors are more dangerous than benign tumors.

barry   3050   1 Reply

duddy

An adult patient has just received a diagnosis of brain cancer and is undergoing

An adult patient has just received a diagnosis of brain cancer and is undergoing

An adult patient has just received a diagnosis of brain cancer and is undergoing treatment. Based on what you know about cell division and cancer, why does this seem unusual?

barry   1535   1 Reply

duddy

Certain new cancer therapies deal with the inhibition of angiogenesis (formation

Certain new cancer therapies deal with the inhibition of angiogenesis (formation

Certain new cancer therapies deal with the inhibition of angiogenesis (formation of blood vessels). How would inhibition of blood vessel formation be beneficial in terms of treating cancer?

barry   758   1 Reply

duddy

Describe the cancer stem cell hypothesis. How might this explain the inability o

Describe the cancer stem cell hypothesis. How might this explain the inability o

Describe the cancer stem cell hypothesis. How might this explain the inability of traditional cancer treatments such as radiation and chemotherapy to completely eradicate tumors?

barry   2536   2 Replies

barry

How does chemotherapy work as a treatment for cancer? Why is it not always effec

How does chemotherapy work as a treatment for cancer? Why is it not always effec

How does chemotherapy work as a treatment for cancer? Why is it not always effective?

barry   2744   2 Replies

barry

Eukaryotic cell division consists of interphase and cell division. Explain what

Eukaryotic cell division consists of interphase and cell division. Explain what

Eukaryotic cell division consists of interphase and cell division. Explain what happens in the three parts of interphase (G1, S and G2).

barry   2061   2 Replies

aadarsh

A strain of E. coli carries a substitution mutation causing the terminator codon 5’-UAG-3’ to oc

A strain of E. coli carries a substitution mutation causing the terminator codon 5’-UAG-3’ to oc

Can someone please help me or point me in the right direction. Willing to donate!! Wink

 A strain of E. coli carries a substitution mutation causing the terminator codon 5’-UAG-3’ to occur at an interior position in a particular type of mR

tee   2782   3 Replies

tee

Compare and contrast the processes of oogenesis and spermatogenesis.

Compare and contrast the processes of oogenesis and spermatogenesis.

Compare and contrast the processes of oogenesis and spermatogenesis.

barry   23975   3 Replies

geek-it-up

A gene in a haploid organism produces an mRNA transcript containing a section with three adjacent co

A gene in a haploid organism produces an mRNA transcript containing a section with three adjacent co

Can someone please help me or point me in the right direction. Willing to donate!!

1.   A strain of E. coli carries a substitution mutation causing the terminator codon 5’-UAG-3’ to occur at an interior position in a particular type of m

tee   3485   3 Replies

ucflumm

Asexual reproduction

Asexual reproduction

Hi guys

I don't know allot about biology, save the very basics. I'm having a debate with a guy on a Christian forum that is convinced biological life started as male and female. From what I remember from college life started Ase

NOOBBIOBOY   2418   5 Replies

how_mendel

Infants and nerve cells

Infants and nerve cells

At what rate are nerve cells created in developing infants?

roon

roon   1215   2 Replies

manoj9585

Gastrulation

Gastrulation

A] During embryonic development what structure gastrulates?
B] Name the tissue layers that result from gastrulation.
C] What has been accomplished by the processes that form the gastrula?
D] At what pole of the embryo does gastrulati

vincecarter24   2033   5 Replies

manoj9585

Evolutionary biologists suspect that genetic imprinting evolved through parent-o

Evolutionary biologists suspect that genetic imprinting evolved through parent-o

Evolutionary biologists suspect that genetic imprinting evolved through parent-offspring conflict. What kinds of "conflict of interest" in progeny development can you imagine between mammalian parents?

barry   1467   2 Replies

barry

Compare and contrast DNA and RNA.

Compare and contrast DNA and RNA.

Compare and contrast DNA and RNA.

barry   11878   3 Replies

Jen W

Can any1 compare the genetic content of the zygote to a body cell of the parent?

Can any1 compare the genetic content of the zygote to a body cell of the parent?

Can any1 compare the genetic content of the zygote to a body cell of the parent?

smhry   1122   3 Replies

dave

how does a sperm fertilizing and egg create new combinations of alleles in the zygote ?

how does a sperm fertilizing and egg create new combinations of alleles in the zygote ?

how does a sperm fertilizing and egg create new combinations of alleles in the zygote ?

riyaz   558   1 Reply

smidwids

How long does a developing baby remain a zygote?

How long does a developing baby remain a zygote?

I need to know because I didn't get the question because I thought the zygote was the egg and I thought you only get like one egg a month and every time you have your period you get a new egg so I was thinking about a month but I'm not sure so please

oapplesauce   502   3 Replies

_brooksd

When is a zygote no longer a zygote?

When is a zygote no longer a zygote?

So the gametes come together and you have a zygote. As soon as that zygote splits, is it no longer a zygote?
In that case, are humans zygotes for only a very short time?

zanyu   550   4 Replies

julietalbot6

Is the formation of a zygote, an exothermic or endothermic reaction?

Is the formation of a zygote, an exothermic or endothermic reaction?

A sperm from a male has 23 chromosomes and an egg from a female has also 23 chromosomes, when the egg is fertilized and a zygote is formed, these chromosomes form 23 pairs..which is the code for the whole life of the individual...it is actually a bio

DAV620   533   1 Reply

1108

Do our sex cells only come from the zygote?

Do our sex cells only come from the zygote?

Are the sex cells we make, only from when we where first formed, such as the zygote.
So basically our sex cells we make only come from that first zygote cell at fertilisation.
I mean, do our sex cells we make ONLY come from the zygote, and no other c

smile   465   1 Reply

juliabreslin

As an urchin zygote undergoes cleavage do you expect the mass of cells to grow in size?

As an urchin zygote undergoes cleavage do you expect the mass of cells to grow in size?

Please explain, I looked everywhere, but cannot seem to get this question!

FISH0818   575   1 Reply

dave

How do egg and sperm form a zygote?

How do egg and sperm form a zygote?

When sperm and egg come together, the resulting zygote has genetic information from both. For each alele Is there a roll of the dice as to which information comes from which parent, or in each case is the information from one parent dominant? Would a

Fire_Fly   465   1 Reply

_brooksd