Log in
Biology
1
answer
0
watching
306
views

Genetic variation in a population refers to which of the following?A)

A)Multiple genes within a genome

B)Multiple alleles within a gene pool

C)Multiple offspring with advantageous mutations

D)Multiple individuals breeding together

E)Multiple phenotypes with the same genotype

Watch
1
answer
0
watching
306
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Deanna Hettinger
Deanna HettingerLv2
28 Sep 2019

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share

Related textbook solutions

Molecular Cell Biology
8 Edition,
Lodish
ISBN: 9781464183393
Biology: Science for Life with Physiology
6 Edition,
Belk
ISBN: 9780134555430
Concepts of Biology
OER Edition,
Openstax
ISBN: 9781938168116
Biology
2nd Edition, 2013
Openstax
ISBN: 9781947172517
Essentials of Biology
5 Edition,
Mader
ISBN: 9781259660269

Related questions

Fill in the blank, each word can be used more than once.

word bank- crossing over, avoid predation, reproduce,independent assortment, phenotypes, frequencies, nucleotides,meiosis, protein, prophase, segregation, gene, allele, amino acids,fertilization, arrangement, chromosome.

A(n) _________ is one of multiple forms of the same gene.

These different forms of genes are in the same locus of a(n)_________, but they have slightly different sequences of________.

During ________ I of meiosis, genes of homologous chromosomesalign side-by-side.

Then in a process called _________, homologous chromosomesrandomly line up double-file at the center of the cell and thenseperate. Since alleles are randomly distributed, this processcreates variation among the gametes. After ________ with a gametefrom the other sex, variation among gametes will create variationamong the offspring.

Some offspring will have a more favorable combination of allelesthan others, and will therefore survive and ________ moresuccessfully, leading to more favorable alleles in the nextgeneration. However, sometimes conditions change, andonce-favorable phenotypes may becomes less favorable.

Scientists hope that they will soon be able to use biotechnologyto track the ________ of alleles over multiple generations, therebywatching evolution as it occurs.

Which of the following is NOT characteristic of bacterial operons?

Question 20 options:

an operon may be switched "off" and "on" by concentrations of molecules in the cell

a single mRNA transcript from an operon encodes multiple polypeptides

enhancers and transcription factors play key roles in switching each gene of an operon "on" and "off"

genes within one operon have related functions

one promoter serves multiple genes

Suppose an individual is born into a population with a novel mutation. Is the new mutation an evolutionary change, and why?

Question 21 options:

yes, because new mutations are always adaptive

yes, because the appearance of a new genetic variant is a genetic change in a population

no, because it is not a big enough change to count

no, because most mutations are not adaptive

no, because not enough individuals have the mutation for it to matter

1.) Alterations in chromosome number can occur with any chromosome, but most alterations are not seen in human populations because:

A) the phenotype is homozygous recessive.

B) the phenotype is expressed in a continuous range in a given population and thus does not stand out.

C) they are lethal during fetal development.

D) most are corrected during the first mitotic event in the fertilized egg.

E) the genotype still represents a normal condition.

2.) Polygenic traits display phenotypes that

A) are most commonly reflective of the heterozygous condition.

B) usually express the dominate condition in greater than 75% of the population.

C) represent a continuous range within the population.

D) often are lethal to second generation of children.

E) are masked by a codominance condition.

3.) Which of the following is most likely involved in the determination of intelligence?

A) one gene

B) multiple genes

C) the environment

D) one gene and the environment

E) multiple genes and the environment

Weekly leaderboard

Home
Homework Help 3,900,000
Biology 460,000
Start filling in the gaps now
Log in