answersLogoWhite

0

Genetics

User Avatar

Angie Heaney

Lvl 10
โˆ™ 2021-10-20 18:35:09
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
No Reviews
Leave the first rating

Select your study mode:

Rate this Study Guide:

โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
Cards in this guide (22)
What is an allele

a form of a gene apex

What happens during prophase

The mitotic spindle forms. Apex

What is the purpose of Punnett square and what are their limitations

The purpose of the Punnett square is to predict a breeding experiment outcome. Genetic mutation can cause the Punnett square to return inaccurate results.

This Punnett square sHow is the results of a cross between a tall pea plant and a short pea plant If tall is the dominant form of the trait what is the genotype of the tall pea plant

Tt

What is the difference between a homozygous trait and a heterozygous trait and can you please provide an example for each

a homozygous trait is when an offspring has either both dominant genes or both recessive genes from its parents. a heterozygous trait is when an offspring has both dominant and recessive genes. for example: a long-tailed cat is dominant and a short-tailed cat is recessive. the long-tailed cat (homozygous dominant) had offsprings with the short-tailed cat (homozygous recessive). by doing the punnett square, 100% of their offspring will be heterozygous.

The allele for tall pea plants is dominate over the allele for short pea plants What must be true for a cross between a tall plant and a short plant to produce any short plants

The thing that must be true for a cross between a tall plant and a short plant to produces any short plants would be that the tall plant would have to be heterozygous. This would mean that fifty percent of the plants would be short.

Is color blindness a dominant or a recessive trait

Color blindness is a recessive sex linked trait.

What is the purpose of a punnett square

A Punnett Square is a diagram used by biologists and geneticists to analyze crossbreeding, i.e. to determine the probability of the possible types of offspring which would result from crossing parents of similar or different genotypes and phenotypes. It is used to show every type of combination possible when one or more maternal and paternal alleles interact, for each gene being studied in the cross.

Though not always accurate, this diagram also generally teaches students that are studying genetics how receiving one allele from two different parents does not always have a straightforward outcome. It shows students that there are a large number of possibilities when paternal and maternal alleles interact, especially when one or more parent has an unknown allele.

The inheritance pattern of a trait controlled by two or more genes is what

A polygenic inheritance pattern.

Why do more people have attached rather than unattached earlobes

Cause attached earlobes are the dominant trait. Unattached earlobes are reccessive.

In the cross Yy x Yy what percent of offspring would have the same phenotype as the parents

Crossing Yy x Yy yields YY, 2Yy, yy. Since Y is dominant over y, then YY and 2 Yy all result in the same phenotype. Therefore 3/4 of the offspring will resemble their parents.

Why did Mendel study such a large sample of pea plants to determine the probability of inheritance

The more samples you use, the closer your results will match probability.

Why did Mendel use purebread pea plants

To validate the results of his experiment.

Why green seeds reappeared in the f2 generation if the f1 generation produced plants with a yellow seed

The allele for green seeds is recessive; when a yellow-seeded plant and a green-seeded plant were crossed in the parent generation, the genotype of all of the offspring was Yy, so they exhibited yellow seeds, the dominant allele. However, when two plants from the F1 generation (both with a genotype of Yy) were crossed, 25% of the offspring had a genotype of YY, and displayed yellow seeds; 50% of the offspring had a genotype of Yy, and displayed yellow seeds; but 25% of the offspring had a genotype of yy, and displayed green seeds.

Why does sex linked traits follow different patterns of inheritance than other traits

Males and females have different sex chromosomes.

What best describes the the law of independent assortment

The factors for each trait are separated independently when sex cells form.

A mother has one allele for color blindness and one Allele or normal vision what is the probability that her Gamete Will have the Allele for the color blindness

50%

How are meiosis and mitosis different

mitosis only has to do with celluar reproduction

meiosis has to do with sex cells reproducing
Mitosis creates new cells that are used for development, repair, asexual reproduction and growth. Meiosis creates cells in order for organisms to reproduce sexually.

A plant can have green (G) or yellow (g) leaves. It can also have a long (K) or short (k) stem. A scientist is preparing a Punnett square for a dihybrid cross of a plant with a genotype GGKk. What pos

Gk, gk

Which best describes probability

the likelihood that something will happen

which best describes the result of mendels work with pea plants

(Apex Learning) He showed how traits are passed between generations.

What best describes probability

Probability is a numeric expression of the "odds" that something will happen.

Related study guides

Genetics

20 cards

What color is Mountain Dew

What is the purpose of a punnet square

What is the difference between a homozygous trait and a heterozygous trait and can you please provide an example for each

The allele for tall pea plants is dominate over the allele for short pea plants What must be true for a cross between a tall plant and a short plant to produce any short plants

โžก๏ธ
See all cards
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
No Reviews

Genetics

23 cards

What color is Mountain Dew

What must happen before meiosis can begin

Attached earlobes are recessive to free earlobes What genotypic ratio is expected when an individual with attached earlobes mates with an individual heterozygous for free earlobes

What is the difference between a homozygous trait and a heterozygous trait and can you please provide an example for each

โžก๏ธ
See all cards
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
No Reviews

Genetics

22 cards

What color is Mountain Dew

What is the purpose of a punnet square

What is the difference between a homozygous trait and a heterozygous trait and can you please provide an example for each

The allele for tall pea plants is dominate over the allele for short pea plants What must be true for a cross between a tall plant and a short plant to produce any short plants

โžก๏ธ
See all cards
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
No Reviews

Genetics

29 cards

Does the color of a leaf affect the rate at which that leaf photosynthesizes

What happens during interphase

Define recessive trait

What color is Mountain Dew

โžก๏ธ
See all cards
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
No Reviews

Genetics

23 cards

What is an allele

What happens during interphase

What is a gel electrophoresis chamber

What is the purpose of a punnet square

โžก๏ธ
See all cards
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
No Reviews