General Biology

11 months ago

Looking for Zerobackgound coverslips

Hi Everyone,
Our lab focuses on TIRF related single molecular biophysics study therefore the surface of the coverslips is one of our primary concerns. We used to purchase ZeroBkg PEG brush based, biotin coated coverslips from Micro

Kevin_xu 122 4 Replies

Kevin_xu

11 months ago

Explain why random assignment to groups does not guarantee control over extraneous variables.

Explain why random assignment to groups does not guarantee control over extraneous variables. Also, what factors improve the effectiveness of random assignment? Use examples.

Anonymous 64 1 Reply

tjoshie77

11 months ago

Please help

Cooperation is an example of a(n) _________ behavior.

Timothy A 63 1 Reply

Anonymous

11 months ago

Compare and contrast floods in deserts with floods in more humid environments

Looking for hekp

Malachi de Sous 128 1 Reply

Jojo2you

11 months ago

Why are the basins of interior drainage found only in western United States

Using the concept of water balance, why are basins of interior drainage found only in the western United States?

Jkid 821 3 Replies

Jordan Gibson

11 months ago

Chromosomes vs Chromatids

I know this is kind of a stupid question, but what essentially is a chromatid?

I know one if the defining traits of a chromatid is that it is genetic material inside the nucleus, but what defines a chromatid to be a chromatid? Like for exa

Anonymous 89 1 Reply

Jak Til

11 months ago

Penetrance in flower colour

Flower colour in lilies is determined by a single gene that has 2 semi-dominant alleles. You cross 2 heterozygous pink flowers, obtaining 1/8 red flowers, 1/2 pink flowers, and 3/8 white flowers. You could explain this result if:

1) The re

i_love_science 94 2 Replies

rhockeygirl

A year ago

How the body keeps balance?

When a person runs, certain chemicals in the body increase to make running happen. But afterwards does something counteract those chemicals, or merely let them run out? How does the body create homeostasis most of the time? Does the body respond the

CarbonRobot 94 3 Replies

Anonymous

A year ago

Piston is a______ part of IC engine. a) Rotating b) Revolting c) Reciprocating d) Oscillating

Piston is a______ part of IC engine.
a) Rotating
b) Revolting
c) Reciprocating
d) Oscillating

samuel ofosu 80 1 Reply

Anonymous

A year ago

Solve 6x^4-10x^3-11x^2+13x+2

[img width=350 height=117]https://biology-forums.com

bio_man 107 N/A

A year ago

Question from a quiz from intro to human services Help please

Choosing from different techniques or ideas requires _______ on the part of the
worker.

A. ingenuity

B. practice

C. knowledge

D. adaptation

Danny Montalvo 84 1 Reply

A year ago

Body identify its own tissue that isn't in blood flow?

How does the body know that tissue that isn't connected via blood vessels isn't foreign and should be broken down? Like scar tissue, or the lens in the eye, or anything that develops then just breaks off from the body?

CarbonRobot 139 5 Replies

Anonymous

A year ago

The age of a taxon

All good time of day! What are the ways to determine the absolutr and relativeage of a taxon without using paleontiligicsl methods

Дарья Матросо 115 1 Reply

Anonymous

A year ago

Udemy course to learn Microbiology and Genetics

I am in 9th grade in high school and i am currently taking Biology. I would like to learn Microbiology and Genetics. Please suggest Udemy course or some other online course to learn Microbiology and Genetics. I would like to know one course to learn

Anonymous 104 1 Reply

Anonymous

A year ago

Dying due to too high density?

Is there an occurrence in plants or microbes that causes a species to become sick and die from too much density?

I am new to Biology and found this forum.
Unfortunately I can not classify if there is such a thing as dying in plants d

Algaarve 97 3 Replies

Anonymous

A year ago

Contraceptives + Homeostasis

I had a bit of a question about this as our bio teacher asked us a question to understand homeostasis better, it was:

Imagine if you worked for a pharma company and had to develop a contraceptive that affects hormones in both men and women

Anonymous 99 1 Reply

A year ago

Recombination in dihybrid crosses You have screened for several new recessive mu

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

1 2

munahil 9996 19 Replies

Anonymous

A year ago

Genetics of fungal spores

The fungus Neurospora crassa is a popular model organism for geneticists. During sexual reproduction, haploid cells from two compatible strains of N. crassa fuse together, forming a diploid zygote. The zygote undergoes meiosis to produce four haploid

i_love_science 85 1 Reply

Anonymous

A year ago

Probability of passing disease to offspring

A woman with an abnormally long chromosome 13 (and a normal homolog of chromosome 13) has children with a man with an abnormally short chromosome 11 (and a normal homolog of chro- mosome 11). The probability of producing an offspring that will have b

i_love_science 94 1 Reply

Anonymous

A year ago

Explain how a response to hazards can vary base really tough on individual diffe

explain how a response to hazards can vary base really tough on individual differences and the type of exposure give examples where appropriate.

click23 361 2 Replies

Anonymous

A year ago

Do I have it right about density gradient centrifugation of lipoprotein?

Context: I am a statistician analysing data coming from a DGUC of lipoproteins and I would like to understand exactly what I'm looking at. To wit, the data I am analysing comes in the form of "curves" (1 curve per individual) expressin

DGUCboy 72 1 Reply

Anonymous

A year ago

Amniocentesis enables medical specialists to perform tests about genetic disorders. A genetic marker

Amniocentesis enables medical specialists to perform tests about genetic disorders. A genetic marker is found using a DNA probe. The initial cause of a genetic disorder in an affected child likely results from the presence of abnormal

a. D

ILoveBIO30 2611 1 Reply

A year ago

What is polar covalent bond

what is polar covalent bond

Radha Timalsina 76 1 Reply

Anonymous

A year ago

A Gantt chart is the often the name for the network diagram tool for looping and laddering.

A Gantt chart is the often the name for the network diagram tool for looping and laddering.
Group

Q814 92 1 Reply

A year ago

Which of the following is NOT a consequence of high cellular levels of cAMP?

a) Activation of a kinase cascade
b) Activation of a G-protein
c) Activation of protein kinase A
d) Increased phosphorylation of a protein
e) Stimulation of phosphorylation-mediated activity.

doesn't GPCR activate

runner2392 803 1 Reply

A year ago

Cellular Respiration and Metabolism

1. If a substance makes the lipid bilayer of the inner mitochondrial membrane highly permeable to H+ protons will that cause you to gain or lose weight and why.
2. If a substance increases the number of free hydrogen ions or protons in the inter

Melissa123 1366 1 Reply

A year ago

Suppose a plant is eaten by a mouse, the mouse is consumed by a snake, and the snake is in turn ...

[html]Suppose a plant is eaten by a mouse, the mouse is consumed by a snake, and the snake is in turn consumed by a hawk. What could be assumed about the level of available organic matter in the mouse versus the plant?There will be less org

ednax911 117 1 Reply

A year ago

Which of the following is the first trophic level in every ecosystem?

Which of the following is the first trophic level in every ecosystem?heterotroph

autotroph

tertiary consumer

primary consumer

Mrhoooohmrrhhh 76 1 Reply

gloomyday

A year ago

What is the relationship between matter and energy in an ecosystem?

[html]What is the relationship between matter and energy in an ecosystem?Matter and energy are cycled through the ecosystem.

There is no relationship between matter and energy in an ecosystem.

Matter and energy can only be modeled through

sirbash 77 1 Reply

viconyihu

A year ago

13 part (both questions are related) I will put a diffract one too

1) In mice, black eyes are dominant (R over red eyes (9. In an ideal mouse population exhibiting Hardy- Weinberg equilibrium, 60 mice out of 1 426 have red eyes.
Calculate the frequency of homozygous dominant mice in the population. Record your

Anonymous 86 1 Reply

Anonymous

A year ago

Part 12 please help

1) a) The male reproductive system develops due to
O a. the presence of a Y chromosome, as it suppresses estrogen and progesterone production
• b. the presence of two X chromosomes, as they suppress testosterone production
• c. the pre

Anonymous 91 2 Replies

A year ago

Part 11 I will have more questions but I almost done my credits

1) see image attached
Identify the process in the diagram above.
a. reduction division b.
meiosis
O c nandisjunction
O d. y mitosis

2) some statements about Cell Division
1. Four haploid cells ane produced.

Anonymous 120 2 Replies

A year ago

Please answer all part 10

1) see image
Match the structures of the male and female reproductive systems numbered above with the appropriate descriptions below:
Number:
Description:
Site of spermatogenesis
Site of oogenesis
Site of tubal ligation

Anonymous 116 2 Replies

A year ago

Part 9 help soon need it

1) Radiation treatment uses ionizing radiation to destroy cancer-causing cells. On some occasions, radiation therapy can unintentionally target healthy cells. When radiation therapy is applied to the brain, it can affect testosterone production and r

Anonymous 89 2 Replies

Anonymous

A year ago

Part 8 I don’t have more credits please anwer

1) An endocrine-inactive turnour in the pituitary gland destrays some of the hormone-producing cells in the pituitary gland. What would be a symptom of an endocrine-inactive tumour in the anterior pituitary gland for a woman?
• a. a decreased am

Anonymous 94 2 Replies

Anonymous

A year ago

Part 7 nowwww

1) Hashimoto's disease Is an autoimmune disease where the body's immune system attacks the thyroid gland, preventing it from functioning property. Often times, a very large number of white blood cells will accumulate in the thyroid gland an

samantacastillo 63 2 Replies

A year ago

Part 6 nowwww

1) see image
hormone 3 levels increased, what would be the resulting effect on hormone 1 and 2?
• a.
Hormone 1
Hormone 2
Increase
Increase
• b
Hormone 1
Hormone 2
Decrease
Increase
Hormone

Anonymous 72 2 Replies