which of the following is not a reason why genetic variation matters? course hero

Where did most of the genetic variation in the human genome come from?

Jun 12, 2015 · View Notes - Module 7 Lecture Quiz from MODULE 7 at University of Florida. Question1 1/1pts Ifp=.9,whatisthefrequencyoftheheterozygote? .81+(2)(.9)(.1)+(.01) .10 .81 ...

Is genetic diversity due entirely to inherited genes on the sex chromosomes?

Jun 21, 2019 · 1 / 1 pts Question 11 Which of the following is NOT a reason why genetic variation matters? provides raw material for natural selection to act on if the population is faced with a …

What are environmentally produced phenotypes that mimic conditions that may be caused by genetic mutation?

Nov 21, 2017 · Anatomy and Physiology. Anatomy and Physiology questions and answers. 1. Which of the following is NOT a reason for genetic variation within the human population? the …

How does random fertilization lead to genetic variation?

Crossing over plays a critical role in increasing the genetic variation among offspring of sexual reproduction. Crossing over is unique to meiosis. Its occurrence depends on specific events …

What is the term for the transmission of traits from parents to offspring?

The transmission of traits from parents to offspring is called heredity.

How many strands are in a chromosome?

Each chromosome contains one long molecule of double-stranded DNA and proteins. True

How many chromosomes are in metaphase 1?

During metaphase I, there will be four pairs of chromosomes (tetrads) aligned at the metaphase plate.True

What phase is chromosome alignment in?

chromosome alignment in metaphase I and separation in anaphase I

How many stages of meiosis are there?

Can you recognize the eight stages of meiosis based on the location and behavior of the chromosomes?

What is the role of meiosis in the sexual life cycle?

Another important aspect of meiosis and the sexual life cycle is the role these processes play in contributing to genetic variation. Although offspring often resemble their parents, they are genetically different from both of their parents and from one another. The degree of variation may be tremendous.

Which cell enters meiosis as a diploid?

The parent cell that enters meiosis is diploid, whereas the four daughter cells that result are haploid.

Why are dominant genes not seen in adults?

Because lethal dominant genes are always expressed and result in the death of the embryo, fetus, or child , dominant gene disorders are NOT seen among adults.

How are hereditary characteristics transmitted to offspring?

Hereditary characteristics are transmitted to offspring by genes.

What is a person's genetic makeup called?

A person's genetic makeup is referred to as his or her phenotype.

Is Jason's parents homozygous?

Both of Jason's parents are homozygous dominant for tall. Jason has inherited the homozygous dominant trait for tallness. Jason, however, is quite short. Which of the following could explain why Jason is short?

Does genetic diversity affect sex chromosomes?

No, because genetic diversity has nothing to do with the sex chromosomes but is due to crossing-over of chromosomes, independent assortment of chromosomes, and segregation of chromosomes. In meiosis the spermatozoa that are produced are genetically unlike each other and unlike the cell that produces them.

Which type of gene transfer is common in both eukaryotes and prokaryotes?

T or F: Horizontal gene transfer is common in both eukaryotes and prokaryotes.

Which event always leads to the evolution of genes with new functions?

T or F: DNA duplication events always lead to the evolution of genes with new functions.

Why are genes similar in their nucleotide sequence?

Genes that are similar in their nucleotide sequence because of a common ancestry. (the key to homologous genes is not just their similarity, but that they are similar because they share a common evolutionary origin. Around half of our genes have clear homologs in flies and worms.)

What is a C gene?

C. A gene that has recently been duplicated in the genome

What organisms can you detect homologs of genes?

T or F: Homologs of many human genes are easy to detect in such organisms as worms, fruit flies, yeasts, and even bacteria.

Which gene has multiple versions?

T or F: Most genes in the genomes of vertebrates exist in multiple versions.

Which exon shuffling requires the presence of introns?

D. Exon shuffling requires the presence of introns.

What is the ultimate source of novel variation?

D. Mutation is the ultimate source of novel variation.

What are characteristics inherited from?

A. Characteristics are inherited from parent to offspring.

Why do unbanded snakes survive better than banded snakes?

B. Snakes on an island that are unbanded survive better than banded snakes because they avoid predation.

Do finches reproduce after a drought?

D. Finches with large beaks survive and reproduce more after a drought.