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Genetics

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Laverna Zieme

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Cards in this guide (16)
What is an allele

a form of a gene apex

What must happen before meiosis can begin

DNA doubles and produces sister chromatids before meiosis begins.

the chromosomes must replicate

Is color blindness a dominant or a recessive trait

Color blindness is a recessive sex linked trait.

If an organism has five pairs of chromosomes how many different gametes could it produce without crossing over

Ill tell you when your older

Why do more people have attached rather than unattached earlobes

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

What is the role of microfilaments in cell division

They pull the cell membrane in.

They Split The Cell During Cytokinesis.

What is true of the allele pair of someone with a genotype TT

The allele pair of someone with a genotype TT is homozygous dominant.

What is a true statement about Y chromosomes

Only men have them.

How did Mendel make the F1 generation for his experiment

he crossed two pure lines

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.

Having freckles is dominant (F) and not having freckles is recessive (f). A mother has Ff and a father has ff. If they have a child which genotype will make their child not have freckles

ff (apex)

Which of the following genotypes could be described as homozygous dominant Xx AA Bb tt

AA

Why deos A mother has one allele for dimples and one allele for no dimples What is the probability that she produces a gamete with the allele for dimples

Answer is 50% :: Apex

Why is a dominant allele called dominant apex

it dominates the phenotype

Which best describes probability

the likelihood that something will happen

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