Questions
Why is it important to life that interactions be weak, noncovalent interactions?

Why is it important to life that interactions be weak, noncovalent interactions?

In: Biology

1. Female mammals who are carriers of an X-linked recessive trait caused by a non-functional allele...

1. Female mammals who are carriers of an X-linked recessive trait caused by a non-functional allele would express the encoded protein:

a. at the full amount in some cells, but express no protein in other cells

b that displays a novel function in the protein to produce a different dominant trait

c that displays dominance due to haploinsufficiency

d at 1/2 of the normal amount in each cell in a form of the mutant protein

e that would stop function in a dominant negative manner

2. You are following segregation of four genes in a cross – A, B, C, and D Dominant alleles are capital letters and recessive alleles are small case.

You take the cross - aa Bb cc Dd x Aa Bb CC Dd. What is the frequency expected among the progeny for the heterozygous genotype: Aa Bb Cc Dd?

1/4

1/16

1/32

0

1/8

In: Biology

A snapdragon plant has red, pink, or white flowers, inherited in an incomplete dominance pattern. It’s...

A snapdragon plant has red, pink, or white flowers, inherited in an incomplete dominance pattern. It’s height is inherited in a dominant/recessive pattern. It can come in tall (T) or dwarf (homozygous recessive) varieties. What is the ratio expected if you cross a pink-tall (Tt) plant with a pink-short (tt) plant?

  1. 1 red tall: 1 red dwarf: 2 pink tall : 2 pink dwarf : 1 white tall : 1 white dwarf
  2. 1 red tall : 1 red dwarf : 1 pink tall : 1 pink dwarf : 1 white tall : 1 white dwarf
  3. 3 red tall : 3 red dwarf : 1 white tall : 1 white dwarf
  4. 2 red tall : 2 red dwarf : 1 pink tall : 1 pink dwarf : 1 white tall : 1 white dwarf
  5. 2 red tall: 1 red dwarf : 1 pink tall : 1 pink dwarf : 2 white tall : 1 white dwarf

In: Biology

How does the origin story of the double helix differ between the "classic" story told by...

How does the origin story of the double helix differ between the "classic" story told by James Watson and that described in the video about Rosalind Franklin? Take a few moments to do some due diligence on James Watson (you can start here). When teaching and discussing science with students, should we separate the science from the person, or are the two inextricably linked?

In: Biology

the fact that mitochondria and chloroplasts contain their own DNA that is genetically similar to prokaryotic...

the fact that mitochondria and chloroplasts contain their own DNA that is genetically similar to prokaryotic DNA is supporting evidence for the ______theory.

A. Extrusive

B. Exosymbiotic

C. Evolution

D. Exogenous

E. endosymbiotic


In: Biology

Compare and contrast Chondrichthyes and Actinopterygii fishes. Make a table to compare. Think about physical (anatomical)...

Compare and contrast Chondrichthyes and Actinopterygii fishes. Make a table to compare. Think about physical (anatomical) and ecological/behavioral differences.

In: Biology

connexons/gap junctions are involved in ____ - synaptic - direct contact - paracrine - endocrine

connexons/gap junctions are involved in ____

- synaptic

- direct contact

- paracrine

- endocrine

In: Biology

“There must be a God said the goldfish, otherwise who changes the water!”  Write a one page...

There must be a God said the goldfish, otherwise who changes the water!”  Write a one page reflection on the point behind this remark, based on your thinking about the cosmological argument.  One page response.  

In: Biology

You want to study how a spinach sucrose transporter is regulated during plant development. Propose one...

You want to study how a spinach sucrose transporter is regulated during plant development. Propose one experiments that seek to understand one regulatory mechanism that might be involved. Made sure to include the following: what your experiment seeks to specifically understand? What are your controls and why each is needed? And, what are your expected results?

In: Biology

Translocation is the collective movement of the mRNA and tRNA during translation. These steps occur in...

Translocation is the collective movement of the mRNA and tRNA during translation. These steps occur in the following order:

A.

P-site tRNA moves to the E-site and the A-site tRNA moves to the P-site

B.

E-site tRNA moves out of the ribosome and the P-site tRNA moves to the E-site

C.

E-site tRNA moves to the P-site and the P-site tRNA moves to the A-site

D.

A-site tRNA moves to the P-site and the P-site tRNA moves to the E-site

In: Biology

Match each of the following terms to its definition. Prediction Protons Lipids Eukaryotes Homeostasis Chloroplast Phosphorylation...

Match each of the following terms to its definition.

Prediction

Protons

Lipids

Eukaryotes

Homeostasis

Chloroplast

Phosphorylation

Beta-carotene

Cellular respiration

Inductive reasoning

A.

Process that energizes the molecule that receives the phosphate when a phosphate group is removed from ATP

B.

The outcome we expect from a hypothesis test

C.

Cells that have a nucleus surrounding the genetic material

D.

Hydrophobic organic compounds made primarily of hydrocarbons

E.

Antioxidant found in orange fruits and vegetables

F.

The maintenance of a constant internal environment

G.

The net movement of molecules down a concentration gradient

H.

Using observations to come up with an hypothesis

I.

Subatomic particles that have a positive electric charge

J.

The process of converting food into ATP

K.

An organelle that uses light energy to convert carbon dioxide and water into sugars

In: Biology

A) What are different stages of development in animals? What is the importance of each? B)...

A) What are different stages of development in animals? What is the importance of each?

B) Describe two specialization that help increase the surface area of small intestine for absorption of nutrients from digested food.?

C) Discuss how gut microorganisms play an important role in metabolism.?

In: Biology

1. Illuminate (investigate, illustrate {draw, diagram, print}, describe, and explain) what scientists have discovered regarding the...

1. Illuminate (investigate, illustrate {draw, diagram, print}, describe, and explain) what scientists have discovered regarding the major biological, ecological, and behavioral adaptations associated with each of the following primate groups. Be sure to tell in what geographic areas the fossil evidence of each form has been found and what scientists think the areas were like when the fossil forms lived there. For the hominins that used stone tools, illustrate and describe typical examples of their technology.

Notharctus,tenebrosas

Darwinius masillae

The “dawn ape” Aegyptopithecus

Earlier Miocene monkey Victoriapithecus (on the branch giving rise to the Old World Monkeys)

Earlier Miocene monkey-like ape Proconsul

Middle Miocene great ape Afropithecus

Early Pliocene hominin Ardipithecus ramidus

Australopithecus afarensis

Homo habilis

Associated tools: African Old Stone Age – the Oldowan Industry)

Early African Homo erectus (has also been referred to as Homo ergaster, first appears about 1.65 Ma) (Associated tools: African Old Stone Age - Acheulean Industry)

In: Biology

If cold is not a sterilizing procedure, why is radiation sometimes referred to as “cold sterilization”?...

  1. If cold is not a sterilizing procedure, why is radiation sometimes referred to as “cold sterilization”?
  2. Do you think irradiated food should be labeled? Explain your reasoning.
  3. Research the use of copper as microbial control agent.
  4. If you could only choose one chemical agent to use in your home, which would you choose and why? Why would you not choose some of the other choices?

In: Biology

write a short report, 250 words about "Microbial growth". Author's name or website's name and title...

write a short report, 250 words about "Microbial growth". Author's name or website's name and title of article in APA format, date of publication or copyright, its relevancy to your future career goals and one potential multiple test question.

In: Biology