General Biology

Does the glu– allele ever confer a disadvantage?

Does the glu– allele ever confer a disadvantage?

In the presence of poison-laced glucose, cockroaches that refuse glucose will have a much higher survival rate than cockroaches that feed indiscriminately. This explains why the glu– allele frequency increases over time in a population exposed to poi

gray87   4314   8 Replies

Fatumata Kamara1

What percentage of albertans would you expect to be heterozygous for this trait?

What percentage of albertans would you expect to be heterozygous for this trait?

If 85% of the population of Alberta has Rh+ blood, a dominant trait, what percentage of albertans would you expect to be heterozygous for this trait?

mishaaus   9142   8 Replies

notnattyb

Discuss the role of the cell cycle in cell division and compare mitosis and meiosis in terms of ...

Discuss the role of the cell cycle in cell division and compare mitosis and meiosis in terms of ...

Discuss the role of the cell cycle in cell division and compare mitosis and meiosis in terms of when, where, and how each occurs and their consequences.

Anonymous   57   1 Reply

doubleu

Discuss the structure of DNA, how it replicates including the enzymes involved, and how DNA is ...

Discuss the structure of DNA, how it replicates including the enzymes involved, and how DNA is ...

Discuss the structure of DNA, how it replicates including the enzymes involved, and how DNA is expressed that helps to give you the character.

Anonymous   65   1 Reply

doubleu

If a settlement cannot be reached,

If a settlement cannot be reached,

If a settlement cannot be reached, the lawyer prepares the case for trial and represents the client in court proceedings, advocating for justice and fair compensation.

Hatteress   54   1 Reply

Anonymous

Biology 30 lab help

Biology 30 lab help

Can someone please help me complete this lab Thank you!!!

Please see images below

bunnyliv   564   11 Replies

heonibun

Which of the following phylogenies represents the most likely evolutionary relationships among four

Which of the following phylogenies represents the most likely evolutionary relationships among four

Thanks for the help!

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kryocron   3900   14 Replies

Mroll54

Density gradient centrifugation?

Density gradient centrifugation?

Mastering Bio question:
The experimental technique: Density-gradient centrifugation

When a solution of cesium chloride (CsCl) is subjected to high-speed centrifugation, a stable density gradient is formed. Meselson and Stahl found tha

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goldenanchor   19473   17 Replies

ahnaf.daiden@mi

Help please Darwin theory, guppy spots, bioman! :)

Help please Darwin theory, guppy spots, bioman! :)

1)Below are two histograms showing guppy coloration in two different streams, Stream North and Stream South. Use these histograms to answer the first two questions.
Q1. Which spot brightness level is most heavily represented in Stream North?

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gh1991   17003   77 Replies

Sylvia Okoroafor

How can you determine if the glucose-aversion trait in cockroach?

How can you determine if the glucose-aversion trait in cockroach?

How can you determine if the glucose-aversion trait becomes more common in a cockroach population as a result of adaptive evolution?

exhbing the three phenotypes glucose-attracted, intermediate, and glucose averse. These represen

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blakeanne93   7944   31 Replies

Sofia Dooling

The statement, "The Mutation Accumulation hypothesis notes that mutations causin

The statement, "The Mutation Accumulation hypothesis notes that mutations causin

a. many mutations that cause cell death are, in fact, highly deleterious
b. individuals carrying a mutation causing death before reproductive maturity would have
a lifetime reproductive success rate of zero
c. mutations causing death a

tailora   376   1 Reply

bolbol

Meiosis (3 of 3): Determinants of Heredity and Genetic Variation (BioFlix tutori

Meiosis (3 of 3): Determinants of Heredity and Genetic Variation (BioFlix tutori

Part A - Independent assortment and genetic variation
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

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andreaa   62224   223 Replies

dee douglas

Compare and contrast mitosis and meiosis.

Compare and contrast mitosis and meiosis.

Compare and contrast mitosis and meiosis. Analyze the growth rate of chicks to explain how food consumption results in the chicks growing size. Use cell reproduction in you explanation. Use 5-7 science words.

Anonymous   161   1 Reply

Anonymous

If living things cannot synthesize inorganic compounds, why is H2O an inorganic compound?

If living things cannot synthesize inorganic compounds, why is H2O an inorganic compound?

Inorganic means not organic. In biology, they are compounds such as water, minerals, acids, bases and salts that are found in the structure of living things but are not living things or are not produced by a living thing.

Ac

bilgehan08   100   6 Replies

bio_man

When you drink a cup of milk, what happens to the protein in the milk after it has been swallowed? T

When you drink a cup of milk, what happens to the protein in the milk after it has been swallowed? T

When you drink a cup of milk, what happens to the protein in the milk after it has been swallowed? To describe these processes, you must be able to use the vocabulary effectively.
Match the words in the left column to the appropriate blanks in

Catracho   1153   5 Replies

India Jaysi

Plant Pathology

Plant Pathology

Provide expansion of the following Abbreviations.

MARK

PRR

NB LLR

SAR

Andrea sandres   48   1 Reply

Anonymous

It’s important to understand the appropriate amounts of both macronutrients and micronutrients to ...

It’s important to understand the appropriate amounts of both macronutrients and micronutrients to ...

It’s important to understand the appropriate amounts of both macronutrients and micronutrients to consume and how the DRI standards indicating those recommended amounts relate to each other. Review the accompanying graphs and label the fields accordi

12...1011

Catracho   10108   151 Replies

Mehreen Kamal

Discuss with examples the concept of the chemical basis of life (the relationship of life to ...

Discuss with examples the concept of the chemical basis of life (the relationship of life to ...

Topic 2: Discuss with examples the concept of the chemical basis of life (the relationship of life to chemistry). (Ch 2 & 3)

Anonymous   42   1 Reply

Anonymous

Discuss when and how prokaryotic and eukaryotic cells evolved, their characteristics and their ...

Discuss when and how prokaryotic and eukaryotic cells evolved, their characteristics and their ...

Topic 3: Discuss when and how prokaryotic and eukaryotic cells evolved, their characteristics and their diversity (Ch 4).

Anonymous   42   1 Reply

Anonymous

Discussion Question

Discussion Question

Topic-1:  Discuss the core concepts of biology as advocated by vision and change and the existence of life at different levels of complexity. (Ch 1)

Topic 2: Discuss with examples the concept of the chemical basis of life (the relatio

Anonymous   49   1 Reply

jloper25

Summation of postsynaptic potentials at the axon hillock

Summation of postsynaptic potentials at the axon hillock

The figure below shows a single postsynaptic neuron that has synapses with four other neurons via their synaptic terminals. Two of the presynaptic neurons produce EPSPs on the postsynaptic cell (green, E1 and E2), and the other two produce IPSPs (red

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aboadu   27291   19 Replies

ggg123

Maladaptive Splitting

Maladaptive Splitting

Hello! I’m wanting to understand maladaptive splitting and it’s link to the spread of cancer. Can anyone illuminate for me?

SheWonders   70   2 Replies

Anonymous

Enzyme help plz thx <3

Enzyme help plz thx <3

Is my understanding of enzymes correct?

I am doing an experiment, to analyze the effect of hydrogen peroxide concentration on enzyme activity of catalyse.

Enzymes:

Enzymes are proteins which are found in the cells tha

cooldude237   50   1 Reply

bio_man

At which letter does the cross-hair disappear?

At which letter does the cross-hair disappear?

The eye has some interesting features  concerning the blind spot and its function (or its lack of function). Try to place your face about 30 cm from the screen with your nose centred on the cross-hair. Close your right eye. Start reading the let

biochicka   3269   5 Replies

Jade Ruby

Nutrients in food can be divided into six groups: carbohydrates, fats and oils, proteins, vitamins,

Nutrients in food can be divided into six groups: carbohydrates, fats and oils, proteins, vitamins,

Nutrients in food can be divided into six groups: carbohydrates, fats and oils, proteins, vitamins, minerals, and water. All work together to support the body’s energy and functional needs.
Match the words in the left column to the appropriate b

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Catracho   3316   34 Replies

Chelsea Mei

What is the hypothesis that you are testing?

What is the hypothesis that you are testing?

Are two genes linked or unlinked?
Genes that are in close proximity on the same chromosome will result in the linked alleles being inherited together more often than not. But how can you tell if certain alleles are inherited together due to link

taylorprough   1212   2 Replies

Sid Pruthi

Nutrition label information provides product details, nutrient content, and sometimes potential heal

Nutrition label information provides product details, nutrient content, and sometimes potential heal

Nutrition label information provides product details, nutrient content, and sometimes potential health benefits of a particular food or ingredient. Specific regulations are in place that dictate what can be included on a food label.
Match the wo

Catracho   1635   10 Replies

Jonna White

A schizophrenic woman in her mid-30’s exhibits a strange reaction to thorazine...

A schizophrenic woman in her mid-30’s exhibits a strange reaction to thorazine...

So I'm having trouble with this part on my worksheet. Maybe someone could help me out here

A.  Census
B.  Case Study
C.  Experiment
D.  Observational Study
 

17.   A schizophrenic woman

ashleysmith1992   293   1 Reply

bolbol

To foster understanding about how gender inequality structures our world, inter

To foster understanding about how gender inequality structures our world, inter

to foster understanding about how gender inequality structures our world, interactionist emphasizes
a- class differences
b- biological gender role
c- male advantages in maintaining sexual inequality
d- internalized societal exp

victoria1   355   1 Reply

bolbol

Biology module

Biology module

please help!!

Use this information to answer the following questions).
The Rh (Rhesus) factor is a protein antigen on red blood cells. Individuals possessing this factor are Rh positive, and those lacking it are Rh negative. The Rh po

bunnyliv   448   6 Replies

Urva

This pedigree traces tongue rolling in a family.The ability to roll your tongue

This pedigree traces tongue rolling in a family.The ability to roll your tongue

1.   This pedigree traces tongue rolling in a family.The ability to roll your tongue incontrolled by a dominant allele; people with the recessive allele cannot roll their tongue. Identify the phenotypes and genotypes of all the people shown in this ped

chie   10352   5 Replies

keelsonsettle

Point Mutations and Why Certain Mutations cause Cystic Fibrosis

Point Mutations and Why Certain Mutations cause Cystic Fibrosis

Point Mutations
   Can someone help me with these two problems?






Why do certain mutations cause cystic fibrosis?

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hunter4565   10270   57 Replies

thissiteisgay

Do MRI machines cause heart attacks and seizures?

Do MRI machines cause heart attacks and seizures?

A bunch of recent studies are coming up saying that fluctuations in Earth's magnetic field causes heart attacks and seizures.
All of a sudden, out of nowhere, within the past three years, there have been a myriad of studies all saying that

ClaraY   191   11 Replies

bio_man

Can you recognize the eight stages of meiosis based on the location and behavior of the chromosomes?

Can you recognize the eight stages of meiosis based on the location and behavior of the chromosomes?

Part A - The stages of meiosis
Can you recognize the eight stages of meiosis based on the location and behavior of the chromosomes?
Drag the diagrams of the stages of meiosis onto the targets so that the four stages of meiosis I and the fou

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biofo   80058   15 Replies

DMELIx

How do you think photosynthesis-related technologies can combat food shortages?

How do you think photosynthesis-related technologies can combat food shortages?

How do you think photosynthesis-related technologies can combat food shortages?

SpiritWolf   309   1 Reply

bolbol

Release factor in translation termination

Release factor in translation termination

Termination codons in bacteria are decoded by one of two proteins. Release factor 1 (RF1) recognizes UAG and UAA, whereas RF2 recognizes UGA and UAA. For RF2, a comparison of the nucleotide sequence of the gene with the amino acid sequence of the pro

i_love_science   61   1 Reply

bio_man

GTP hydrolysis in mRNA translation

GTP hydrolysis in mRNA translation

How many GTP are necessary to synthesize 2 linear peptides of 11 amino acids each using an in vitro prokaryotic system? Assume the tRNAs provided are already loaded with their proper amino acids. All 3 steps of the protein synthesis reaction must be

i_love_science   136   5 Replies

bio_man

Part C - Alternative RNA splicing

Part C - Alternative RNA splicing

Part C - Alternative RNA splicing
The diagram below shows a segment of DNA containing an imaginary gene (Z) and the primary RNA transcript that results from the transcription of gene Z. Exons are represented in green and introns are represented

geri0108   11688   4 Replies

Anonymous

Determining complementary sequence to codon or anticodon

Determining complementary sequence to codon or anticodon

I'm not sure where my reasoning is wrong when determining the complementary sequence to an anticodon or codon:

Question 1: Identify the DNA sequence on the DNA matrix strand which when transcribed produces a sequence capable of

i_love_science   95   1 Reply

bio_man

The statement, "The Mutation Accumulation hypothesis notes that mutations causin

The statement, "The Mutation Accumulation hypothesis notes that mutations causin

The statement, "The Mutation Accumulation hypothesis notes that mutations causing premature senescence are selected against weakly," makes more sense if we consider that ________.
a. many mutations that cause cell death are, in fact, h

tailora   770   1 Reply

bolbol