Cuestionario del primer parcial.

90% of the cells life cycle

Stage where DNA is copied

• Interphase

• Metaphase

• Telophase

• Prophase

Answer explanation

Recuerda las etapas de la división celular.

Which of the following IS NOT a way to break dormancy in plants?

• Scrathing them

• Soaking them in water

• Placing them in a fridge and then removing them

• Placing them in a low temperature oven

Answer explanation

Recuerda la manera en que se te explico la germinación de las plantas.

Pollination is the transfer of pollen from where to where?

• Anther to stigma

• Filament to style

• Stigma to ovary

• Anther to ovary

Answer explanation

Recerda las partes de la planta descritas en la disección de la flor.

What process best explains how muscle cells and nerve cells can develop from the same fertilized egg?

• genetic engineering

• survival of the fittest

• differentiation

• selective breeding

Answer explanation

Recuerda los procesos de diferenciación celular vistos en clases.

more energy is required to produce offspring and for that offspring to reach maturity

• advantage of sexual reproduction

• advantage of asexual reproduction

• disadvantage of sexual reproduction

• disadvantage of asexual reproduction

Answer explanation

Recuerda las comparaciones entre la reproducción asexual y sexual.

For this question, you MUST select two (2) answers:

Chromosomes are made of ____________ and _____________ .

• chromosomes

• DNA

• RNA

• proteins

• polysaccharides

Answer explanation

Recurda el funcionamiento del código génetico.

Which cells aide in sexual reproduction?

• sperm cell

• skin cell

• nerve cell

• muscle cell

Answer explanation

Recuerda que óvulos y espermatozoides se requieren para la reproducción sexal.

What is one difference between asexual and sexual reproduction?

• Asexual (offspring different from parent)

  Sexual (offspirng identical to parent)

• Asexual (Slow reproduction)

  Sexual (Fast reproduction)

• Asexual (offspring no variation)

  Sexual (offspring variation)

• Asexual (more complicated)

  Sexual (less complicated)

Answer explanation

Es importante conocer las caracteristicas en la reproducción sexual y asexual.

Unlike huamns who uksually have one baby at a time, some organisms like turtles lay hundred of eggs. Why is this?

• They have more genes to pass on

• They are prone to more harmful mutations

• More offspring will survive

• They only have babies once every 50 years.

Answer explanation

Es importante que recuerdes las caracteristicas evolutivas de cada ser vivo para reproducirse.

What is one difference between Meiosis and Mitosis?

• Meiosis (4 different cells made)

  Mitosis (2 identical cells made)

• Meiosis (2 identical cells made)

  Mitosis (4 different cells made)

• Meiosis (offspring identical to parent)

  Mitosis (offspring different from parent)

• Meiosis (offspring have 46 chromosomes)

  Mitosis (offspring have 23 chromosomes)

Answer explanation

Es importante que recuerdes la tabla comparativa de la Mitosis y Meiosis.