Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Biology Expert

One evolutionary idea is that the number of amino acids differences in a similar protein from different species can be used as an evolutionary clock. The rate of amino acid substitution varies among proteins as shown in the following table:

Protein changes per protein per billion Year
Fibronectin 9.0
Phospholipase A2 1.9
Cytochrome b5 0.45
Lactate Dehidrogenase 0.34
Cytochrome c 0.22
Histone 4 0.01

a) what is the average rate of amino acid substitution among all the proteins shown?

b) on average, how long would it take to make one change in histone H4? would this serve as a good evolutionary clock?

c)In the time it takes for one change in cytochrome b5, how many changes would we expect to find in fibronectin?

d) In the two million years' time that horses have been differentiated from donkeys, how many amino acid substitutions would be found altogether in these six proteins?

Biology, Academics

  • Category:- Biology
  • Reference No.:- M943806

Have any Question? 


Related Questions in Biology

What regulatory proteins in prokaryotic gene regulation

What regulatory proteins in Prokaryotic gene regulation share the common characteristic of forming DNA loops when they are functioning? Be specific

Biology questionanswer following question about purple

Biology Question Answer following question about Purple Loosestrife 1. Describe Purple Loosestrife invasive strategy, for example how does it succeffully outcompete its native counterparts in the community 2. Name some n ...

If instead of making an energy drink you come up with an

If instead of making an energy drink, you come up with an energy injection, how would that affect the ingredients you put into the shot? Think in terms of polarity and tonicity.

Give an example of pairs that can be mixed together to make

Give an example of pairs that can be mixed together to make a budget solution?

Discuss the need for modern society to shift to a paradigm

Discuss the need for modern society to shift to a paradigm of Sufficiency, within which just and sustainable wellbeing for all of creation becomes the norm. How can this be achieved on an Earth That Is Full? Include cons ...

One more as soon as possible if you can please thank youthe

One more, as soon as possible if you can please! Thank you The technical advances covered in Chapter 15 are creating a host of medical and moral issues that we will all have to confront. Briefly discuss the four major as ...

Identifynbspan organism that lives within 50 miles of your

Identify  an organism that lives within 50 miles of your home.  I live in Panama City, Florida 32405 I would like to use the wolf please? Write  a 1,050- to 1,400-word paper about how the organism has adapted to survive ...

First present the characteristics of water that make it

First present the characteristics of water that make it capable of hydrogen bonding. Then discuss why water is a good solvent and so readily exhibits capillarity. Finally, examine the heat properties of water, specifical ...

Mrs smith is 50 years of age and is nervous about going

Mrs. Smith is 50 years of age and is nervous about going through menopause. How would you explain the process to her? What effects do estrogen and progesterone have on the vaginal mucosa? How does the effect of estrogen ...

How do we call insect which are responsible for

How do we call insect which are responsible for transmitting diseases?

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen