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Laabri

Monday (12/09) - Meiosis Survival Challenge AAC

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30 Nsɛmmisa
Section 1: Genetic Diversity Recap
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Section 2: Meiosis Survival Challenge
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Section 3: Who is the Father?
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1.

A diagram of a biological process is shown below.

This diagram represents .

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2.

Which processes during Meiosis lead to genetic diversity in the daughter cells?

Select THREE correct answers.

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3.

When two chromosomes swap DNA, this leads to _____________ in gametes (sex cells).

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4.

What process creates diversity during Prophase I of Meiosis, when homologous chromosomes exchange genetic material with each other?

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5.

If a starfish typically has 18 chromosomes in its gametes, how many chromosomes are in its somatic cells?

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6.

Meiosis creates additional genetic diversity in daughter cells during Metaphase I, when all possible combinations of alleles are created and randomly organized. This process is known as...

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7.

What is the importance of crossing over and independent assortment during Meiosis I?

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8.

Which of the following best represents the process of crossing over?

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9.

At the end of MEIOSIS, the of the genetic information because because of the process of .

The table below represents several genes and alleles that can be found in Sceloporus magister, the desert spiny lizard. Note: remember, alleles are simply different versions of the same gene.

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12.

Which lizard would survive better in the sand?

Scenario 1: Insecticides!

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15.

Insecticides are chemicals that kill insects. What would happen to this population of lizards if their area was treated with insecticides?

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16.

What would happen to the population of lizards if the offspring had this combination of alleles instead? How do you know?

Scenario 2: Predation

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17.

Let's say this lizard population survived the insecticide treatment because they only eat berries. What would happen to the population if now a fast predator is in the area?

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20.

Winter is coming!

All tan lizards freeze to death because their lighter color does not absorb enough heat.

Select all remaining lizards that can still survive.

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21.

Viral Plague!

All lizards with FF get sick and die.

Select all remaining lizards that can still survive.

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22.

Wild Fire!

A wild fire burns all the plants in the area, and so all the lizards who only eat berries die.

Select all remaining lizards that can still survive.

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23.

Thinking about the survival scenarios above, why is having genetic diversity important?

Concerned about the survival of these lizards in the wild, Eros decided to raise some himself.

After a few months, brand new babies were born, though he doesn't know who the parents of these lizards are.

Using your knowledge of crossing over and sexual reproduction, determine which lizards the babies came from.

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30.

Think about your investigation with the lizards and determining parentage to answer the following question.

Below is a gel electrophoresis for a mother (M) and her child (Ch) and three possible fathers (1, 2, 3).

Using CEJ format, answer the following question:

Who is the father of the child? How do you know?

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10.

What characteristics does this lizard have?

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11.

What characteristics does this lizard have?

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13.

Two black-colored lizards mate and produce offspring.

What is the gene combination of the offspring?

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14.

What characteristics do the offspring have?

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18.

If our original lizard allele combinations cannot survive in the desert, we need to be able to shuffle the combinations available.

What process would produce more genetic diversity in the population by exchanging genes on homologous chromosomes?

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19.

Which combination of alleles would result in a tan, fast lizard that eats berries?

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24.

Who is Apollo's mother?

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25.

Who is Apollo's father?

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26.

Who is Athena's mother?

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27.

Who is Athena's father?

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28.

Who is Ares's mother?

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29.

Who is Ares's father?