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Genetics

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Cortez Stoltenberg

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3y ago
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Cards in this guide (16)
What is an allele

a form of a gene apex

What determines the traits of an organism

the genotype

What must happen before meiosis can begin

DNA doubles and produces sister chromatids before meiosis begins.

the chromosomes must replicate

What was the ratio of tall to short plants in the f2 generation of mendels experiments

3:1

Which phase occurs directly after G1

S Phase - period of DNA replication - 10% shorter than G1.
After G1 phase S phase occurs.

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.

Genetic disorders can result when chromatids fail to separate properly. During with phase is this problem most likely to occur

Anaphase

Which best describes the pure lines in mendels experiment

They were homozygous.

A scientist is preparing a punnett square for a dihybrid cross of a plant with a genotype of GGKk. What possible gametes can the plant produce

Gk, gk

What statement is true of the X chromosomes

Women have two of 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 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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