Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Biology Expert

problem 1) What are the two main causes of heritable variation?

problem 2) Classify the following variations as either

(i) caused entirely by genetic effects or                    

(ii) caused by a combination of genetic and environmental effects.

obesity, eye colour, tallness, ability to sing, maleness, masculinity, blood group, natural hair colour; sickle-cell anaemia, agility

problem 3) Alleles are genes which occupy corresponding positions on….. A ….. chromosomes. They control the same ….. B ….. but not necessarily in the same way.

problem 4)(a) What new combinations of characteristics might arise in the offspring when a tall plant with white flowers is crossed with a dwarf plant (of the same species) with red flowers?

(b) What selective advantage might either of the new varieties have?

problem 5) The genotypes of two guinea pigs, for two characteristics are  represented as AABB and aabb. These guinea pigs are mated, and their offspring eventually mate with each other.

(a) What genotypes could emerge in the second generation?

(b) Which of these would be phenotypically different (i.e. be different in appearance) from the original pair?

problem 6) Suppose that there are six pairs of alleles which control height and that each dominant allele adds 5cm to the stature. Suppose also that the average height of an adult (with equal numbers of recessive and dominant alleles) is 160cm

(a) What is

(i) the tallest,

(ii) the shortest person you would expect from this pattern?

(b) On this basis, what would be the minimum difference in height between any two people?

(c) Why is this minimum difference unlikely to be observed in reality?

problem 7) Give two exs in each case of (a) continuous, (b) discontinuous variation in human populations. 

problem 8) Which one of the following statements is the least accurate?

(a) Discontinuous variation results entirely from genetic differences.

(b) Continuous variation can result from genetic differences.

(c) Discontinuous variation cannot be altered by environmental effects.

(d) Continuous variation results from environmental effects.

problem 9) describe why identical twins will have the same genotype.

problem 10) When  ….. A ….. and …..  B ….. put forward the theory of Natural Selection in 1858 they observed that there are ….. C ….. between  the individuals of a species. They also observed that organisms produce more offspring than can possibly …. D …..to maturity. If the ….. E ….. are inherited and give the individuals an advantage over the other members of the species, they will live ….. F ….. and so leave more offspring with the same beneficial ….. G …..

Biology, Academics

  • Category:- Biology
  • Reference No.:- M95200

Have any Question? 


Related Questions in Biology

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 ...

Focusing on thenbsprespiratory digestive urinary and

Focusing on the  respiratory, digestive, urinary, and reproductive systems.   Create a scenario  and give your patient a disease associated with any of these systems and present the history and symptoms of the particular ...

Trace the pathway of the blood through the heart and

Trace the pathway of the blood through the heart and differentiate between pulmonary, systemic, and cardiac circulation.

Fluid electrolyte and acidbase balancedescribe the

Fluid, Electrolyte and Acid/Base Balance Describe the physiological roles of sodium, potassium, calcium, chloride, and phosphates. State the term for an excess or deficiency of each electrolyte and describe the consequen ...

What is the most common dna repair system in humans

What is the most common DNA repair system in humans, involving enzymatic functions and replacement of damaged DNA bases?

Question 1future drugs and vaccines for the use against

Question 1 Future drugs and vaccines for the use against Ebola Pick an experimental drug, vaccine or other treatment that is being considered in the fight against Ebola. http://www.cdc.gov/vhf/ebola/outbreaks/2014-west-a ...

Climate of Climate of Doubt:  www.pbs.org/wgbh/frontline/film/climate-of-doubt/ this

Climate of Doubt:  www.pbs.org/wgbh/frontline/film/climate-of-doubt/ this video is about 1 hour watch.  Anyone who answer this question skill this video up to 25min then watch the rest. 1. Who is Bob Inglis and what happ ...

What are two ecosystems in the region where you live

What are two ecosystems in the region where you live (Southeastern US) where you live? What are some examples of intrinsic and instrumental values provided by the ecosystems?

Short plant height is a recessive trait tt if a gardener

Short plant height is a recessive trait (tt). If a gardener wants to breed only short plants, will she succeed if she simply removes all tall plants from the breeding population? Why or why not?

In a plant the allele that results in violet flowers v is

In a plant, the allele that results in violet flowers (V) is dominant to one that results in white flowers (v); at another locus, the allele that makes prickly seed capsules (P) is dominant to one that results in smooth ...

  • 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