Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Biology Expert

1. In the "DNA clock", some nucleotide changes cause amino acid substitutions in the encoded protein (nonsynonymous changes), and others do not (synonymous changes). In a comparison of rodent and human genes, rodents were found to accumulate synonymous changes 2.0 times faster than humans and nonsynonymous substitutions 1.3 times as fast. What factors could describe this difference? How do such data complicate the use of molecular clocks in absolute dating?

2. Imagine that Pangea were re-formed today. What might be some of the environmental effects, and how might these changes influence life on Earth?

Biology, Academics

  • Category:- Biology
  • Reference No.:- M927504

Have any Question? 


Related Questions in Biology

Formatnbsp at least one page in length 1-inch margins size

Format:   At least one page in length, 1-inch margins, size 11 font, double spaced.  Sources:   All sources must be properly cited within  and  at end of paper. Use MLA or APA style. Please do the following: Go to the in ...

Question 1some parts of the brain that belong to the limbic

Question 1 Some parts of the brain that belong to the limbic system are the a) amygdala and hippocampus b) basal ganglia and cingulate cortex. c) thalamus and hypothalamus. d) pons, cerebellum, and medulla oblongata. Que ...

Explain how these electrical currents of epsps and ipsps

Explain how these electrical currents of EPSPs and IPSPs are used in spatial and temporal summation to initiate or inhibit the generation of an action potential.

What is the phenotypic ratio that can be used as a

What is the phenotypic ratio that can be used as a hypothesis for a heterozygous dihybrid cross (cross of heterozygotes for two traits) if the traits follow the properties of Mendelian inheritance?

A cell undergoing meiosis produces a daughter cell during

A cell undergoing meiosis produces a daughter cell, during which one nondisjunction event occurs. If the number of chromosomes in a normal diploid cell of this organism (not undergoing cell division) is 38, how many chro ...

1 if humans are in the same class as domestic cats we must

1. "If humans are in the same class as domestic cats we must also be in the same order." True or False? Explain. 2. Explain in your own words how, from an evolutionary standpoint, a desert spring and an island in the oce ...

Do you think there are political issues surrounding human

Do you think there are political issues surrounding human population growth? Why or why not? Can you give an example?

Nutrition amp metabolismdefine nutrient and list the six

Nutrition & Metabolism Define nutrient and list the six major categories of nutrients Know the most abundant macronutrients Define the absorptive and post-absorptive states. In which state is the body storing excess fuel ...

Consider the food web for lake erie shown abovegive a

Consider the food web for Lake Erie shown above. Give a detailed analysis of this food web. Be sure to address the following in your analysis:  A description of the producers and consumers (you do not need to list every ...

1 how does gel electrophoresis sort dna fragments2 if

1. How does gel electrophoresis sort DNA fragments? 2. If each individual has such a small amount of DNA, how do the bands on the gel contain enough DNA to be visible? 3. Many genes only have a few possible alleles. For ...

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

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