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 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 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?
In: Biology
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 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) and ecological/behavioral differences.
In: Biology
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 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 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 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 |
Beta-carotene |
Cellular respiration |
|
|
In: Biology
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 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
In: Biology
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