Genetics and Developmental Biology

Covalent Bonding Question

Covalent Bonding Question

Which ones are covalently bonded?
 
a)Two adjacent amino acids in a peptide
b)Two adjacent nucleotides in RNA
c)A guanine-cytosine base pairing
d)Hydrophobic amino acid from peptide 1 and hydrophobic amino acid from peptide

diamond3094   612   1 Reply

bolbol

Warning coloration and horizontal gene transfer

Warning coloration and horizontal gene transfer

Species which are distasteful or poisonous to predators, or carry a sting, often have warning coloration. e.g. Cinnabar moths, wasps, bees. In some cases these colour patterns are mimicked by harmless species. e.g. Some flies have the banded warning

Geoff Kitching   127   3 Replies

bio_man

Can a child inherit a German appearance?

Can a child inherit a German appearance?

 Hello!  But I just want to know the opinion of experts.  Here, from one group in the social network on racial studies, I was told such a thing that if there is a relative (grandmother / grandfather or great-grandfather / great-

Artemprives   114   1 Reply

doubleu

If a person with a pericentric inversion is phenotypically normal why do they of

If a person with a pericentric inversion is phenotypically normal why do they of

If a person with a pericentric inversion is phenotypically normal why do they often have abnormal children? 

Dextor   1025   1 Reply

bolbol

Help please

Help please

1) Identify the sequence of structures through which sperm pass from the site of production to the vagina. SEE FIRST PHOTO ATTACHED

Answer.        Answer.       Answer.     Answer

Anonymous   142   2 Replies

Anna le

Provide the phenotypes and genotypes of all individuals in the pedigree.

Provide the phenotypes and genotypes of all individuals in the pedigree.

Duchenne muscular dystrophy is an X-linked recessive trait. The following pedigree shows the occurrence of this disorder in an extended family.
Provide the phenotypes and genotypes of all individuals in the pedigree.

Enter phenotype

silverardo   464   2 Replies

bio_man

10 questions i really need help please some attached

10 questions i really need help please some attached

1) SEE IMAGE TO ANSWER:
Which of the following events occur in the stage of cell division illustrated above?

a. Homologous chromosomes align at the equator

b. Sister chromatids separate

c. Daughter cells form

Anonymous   295   4 Replies

Anonymous

HELP PLEASE 13 QUESTIONS

HELP PLEASE 13 QUESTIONS

1) Match each description with the correct genetic term.

1) Selection of the most favourable characteristics

2) Transmission of parent’s characteristics by DNA found in genes

3) Offspring from the F1 cross

Anonymous   252   3 Replies

Anna le

Help please i need help today 7 questions some attached

Help please i need help today 7 questions some attached

1) In mice, albinism (g) is recessive to grey coat colour (G). A grey mouse mated with an albino mouse. Over the course of several months, 38 pups were born. Out of 38 pups, 17 had a grey coat, and 21 were albino.

Which of the following ro

Anonymous   286   4 Replies

bio_man

Since the seedless bananas are triploid open parentheses 3 n close parentheses, and do not produce ...

Since the seedless bananas are triploid open parentheses 3 n close parentheses, and do not produce ...

1. Since the seedless bananas are triploid open parentheses 3 n close parentheses, and do not produce viable seeds for reproduction. To grow more seedless banana plants, farmers take a side shoot and replant it.

This type of reproduction i

Anonymous   150   1 Reply

bio_man

13 Questions Answer all please some are attached I need it today please and thanks

13 Questions Answer all please some are attached I need it today please and thanks

1) Some events that occur during protein synthesis

1) mRNA binds to a ribosome.
2) Transcription completes.
3) mRNA leaves the nucleus.
4) tRNA attaches to the start codon.
5) Ribosome reads the mRNA codons.
6) Sto

Anonymous   263   4 Replies

bio_man

Sickle cell anemia is an inheritable red blood cell disorder that results in sickle-shaped red blood ...

Sickle cell anemia is an inheritable red blood cell disorder that results in sickle-shaped red blood ...

1) SEE IMAGE ATTACHED



2) SEE SECOND IMAGE TO ANSWER

Sickle cell anemia is an inheritable red blood cell disorder that results in sickle-shaped red blood cells. The sickle-shaped red blood cells can stick to blood ves

Anonymous   302   5 Replies

Adrijaa Sengupta

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

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

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

Viable human DNA?

Viable human DNA?

How much do biologists know which DNA sequences would create a viable human being?

CarbonRobot   218   5 Replies

Anonymous

The ABO and MN blood groups are given below for four sets of parents (1 to 4) an

The ABO and MN blood groups are given below for four sets of parents (1 to 4) an

The ABO and MN blood groups are given below for four sets of parents (1 to 4) and four children (a to d). Recall that the ABO blood group has three alleles, IA, IB, and i. The MN blood group has two codominant alleles, M and N.

Using your

heathtalon   5970   5 Replies

Jk An

4 QUESTIONS PLEASE ANSWER ALL I DONT HAVE MORE CREDITS AND I NEED IT TODAY

4 QUESTIONS PLEASE ANSWER ALL I DONT HAVE MORE CREDITS AND I NEED IT TODAY

1) The longest phase of the cell cycle is Answer  and the shortest is Answer.

POSSIBLE ANSWERS: INTERPHASE,PROPHASE, METAPHASE,ANAPHASE, TELOPHASE, CYTOKINESIS







2) SEE IMAGE ATTACED

Anonymous   161   2 Replies

Carolina Castillo2

13 QUESTIONS I NEED IT TODAY ANSWER ALL IF YOU WANT PLEASE

13 QUESTIONS I NEED IT TODAY ANSWER ALL IF YOU WANT PLEASE

1) What is the first process in protein synthesis that is affected by a missense mutation?

a. None of the above

b. Translation

c. Replication

d. Transcription

Anonymous   239   4 Replies

Carolina Castillo2

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

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

Write the genotype including chromosomes relevant to the cross

Write the genotype including chromosomes relevant to the cross

Example of Balancer chromosomes utilization in crosses

Example: create double mutant stock starting from the following 3 stocks:
mut A  / mut A    (II chromosome)
mut C / mut C    (III chromosome)
I

hac1   1024   6 Replies

Mo097utb

Race is to ethnicity as:

Race is to ethnicity as:

Race is to ethnicity as:

   A.   
individualism is to collectivism.
   B.   
biological is to cultural.
   C.   
nurture is to nature.
   D.   
theoretical research is to applied research.

angie21   447   1 Reply

bolbol

Identify which pattern(s) of transmission is/are impossible.

Identify which pattern(s) of transmission is/are impossible.

Identify which pattern(s) of transmission is/are impossible. Specify why transmission is impossible. (AD = autosomal dominant, AR = autosomal recessive, XR = X-linked recessive, XD = X-linked dominant)

srmtrc   2142   6 Replies

LookshaC4

) Mexican hairless dogs are heterozygous (Hh), carrying a single copy of the dom

) Mexican hairless dogs are heterozygous (Hh), carrying a single copy of the dom

) Mexican hairless dogs are heterozygous (Hh), carrying a single copy of the dominant lethal allele. In a given population, the Hh genotypic frequency is 60% and the frequency of each homozygote is 20%. Assuming w = 1 for the Hh and hh dogs, what is

mikael   1425   10 Replies

padre

Support need it please 10 questions SEE IMAGES

Support need it please 10 questions SEE IMAGES

1) Which row correctly identifies the function and source of hCG, respectively?

a.Function                                Source
Stimulates FSH  &nb

Anonymous   202   4 Replies

Anonymous

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

12

jessiijessii   60493   19 Replies

Emilia Diaz

Dideoxynucleotide DNA sequencing (Mastering Genetics)

Dideoxynucleotide DNA sequencing (Mastering Genetics)

The diagram below shows an autoradiograph of a DNA sequencing gel.

Type the 5' to 3' sequence of the template strand (“inferred strand”) based on the pattern in this gel. Use only capital letters for the sequence.

mmurt13   11160   7 Replies

Poliann Flores

DNA changes with age. Predictable?

DNA changes with age. Predictable?

Are all DNA damages and mutations random, or do they follow a predictable pattern with age?

CarbonRobot   158   3 Replies

bio_man

3 questions some are attached please answer all I NEED IT NOW THANKS

3 questions some are attached please answer all I NEED IT NOW THANKS

1) See first image 
Identify the phase(s) from the image above that best illustrates each of the following stages of mitosis AND include your explanation of why. (2 marks).

a. Interphase
b. Prophase
c. Metaphase

Anonymous   286   4 Replies

Noa Mastin

CD 40 on the B cell membrane must bind to CD40L on the TH cell in order for

CD 40 on the B cell membrane must bind to CD40L on the TH cell in order for

CD 40 on the B cell membrane must bind to CD40L on the TH cell in order for  (BLANK) to occur                                           &nbs

alwhite   457   1 Reply

bolbol

A farmer crosses a black rooster with a white hen. Of the seven offspring, three are black, three ...

A farmer crosses a black rooster with a white hen. Of the seven offspring, three are black, three ...

Q; A farmer crosses a black rooster with a white hen. Of the seven offspring, three are black, three are speckled black and white, and one is white.
a) What can you infer about the inheritance patterns of the alleles for white and black feathers

Jess8219   3809   12 Replies

andresgs04

How to draw a 2N=6 cell in both mitosis and meiosis

How to draw a 2N=6 cell in both mitosis and meiosis

I am having trouble trying to figure out how to draw a cell in mitosis and in meiosis.

For example, how do you draw a 2N=6 cell with chromosomes in mitosis during prophase, metaphase, anaphase, and telophase

How would you draw

sjohn092   8117   7 Replies

sissus123

I need help with this questions is one long and 4short

I need help with this questions is one long and 4short

1) In guinea pigs, a black coat (B) is dominant over a white coat (b), and straight hair (S) is dominant over curly hair (s). A heterozygous, black, and straight hair guinea pig (BbSs) was test crossed.


A) Which of the following rows

Anonymous   226   2 Replies

U No

You have also identified a third recessive mutation that you call crimson. Wasps homozygous for crim

You have also identified a third recessive mutation that you call crimson. Wasps homozygous for crim

You have also identified a third recessive mutation that you call crimson. Wasps homozygous for crimson have a red abdomen. (Wild-type abdomens are yellow.)

You make pure-breeding crimson (cc) and triple-mutant (apricot, blunt, crimson) li

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sammiebb   18153   34 Replies

farida Abdelgawad

Mapping with trihybrid (three-point) test crosses! Help?

Mapping with trihybrid (three-point) test crosses! Help?

You examine 450 progeny from the cross in Part C and classify them according to phenotype. The results are shown in the table below.

!See Below Image!

Use these data to complete the linkage map shown below.
Drag the blue la

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hunter4565   23340   14 Replies

carlgru

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

11 questions i Need support ASAP

11 questions i Need support ASAP

1) Which of the following statements correctly describes a Y-linked trait?

a.  It can be inherited by a daughter from her father.

b. It will always be expressed if present in male individuals. 

c.  It

Anonymous   491   6 Replies

kumbu gozo

2 questions answer all parts please

2 questions answer all parts please

1) Match the following formulas with their correct descriptions form the drop down menu provided.

Formulas

1. Dp equals N over A
2 Dp equals N over V
3. increment N equals open parentheses N plus I close parentheses mi

Anonymous   311   6 Replies

inaayaz

What are Homologous Chromosomes? Are They Present in All Cells?

What are Homologous Chromosomes? Are They Present in All Cells?

I need help precisely answering the attachment below

Identify Homologous Chromosomes and Sister Chromatids in appropriate phases.
What are homologous chromosomes? Are they present in all cells? If not, which
cells lack homologo

Fedoraman   98   4 Replies

bio_man