7th Grade #3: Reproduction and Growth

Which of the following sentences describes the ways plants spread their seeds? Choose the two that apply.

• Bees, attracted by brightly colored flowers, pick up and move seeds to new locations.

• Animals, attracted by scent, eat and then disperse seeds in new locations through their droppings.

• Seeds are carried away from the parent plant by wind or water.

• Seeds are dispersed during pollination.

Grafting is when part of a plant’s stem is cut and then attached to another plant. Apple farmers often use grafting to ensure that new plants will have the desired characteristics of the original apple tree. What kind of reproduction is this?

• stem sprouting

• fertilization

• sexual

• asexual

What type of plant life cycle is illustrated in this image?

• gymnosperm

• angiosperm

• non vascular plant

• fern

Choose the items related to sexual reproduction.

• male and female elk combining genetic material

• a young hippogriff has a mother and a father

• offspring are better suited to adapt to their environment

• a whiptail lizard does not need to find a mate

• a starfish creates an exact genetic replica of itself

Choose the items related to asexual reproduction.

• male and female elk combining genetic material

• a young hippogriff has a mother and a father

• offspring are better suited to adapt to their environment

• a whiptail lizard does not need to find a mate

• a starfish creates an exact genetic replica of itself

When one allele is not dominant over another, resulting in a blended phenotype for heterozygous offspring is considered....

• Incomplete Dominance

• Codominance

When one allele is not dominant over the other, resulting in both traits expressed in a heterozygous individual.....

• Incomplete Dominance

• Codominance

This type of inheritance pattern is a MIXTURE of both traits.

• incomplete dominance
• co-dominance
• Mendelian dominance
• complete dominance

Incomplete dominance or co-dominance?
A calico cat shows both the traits for orange fur and black fur. 

• Incomplete Dominance
• Co-dominance
• Complete dominance
• Mendelian dominance

What is formed prior to sexual reproduction?

• sex cells (egg and sperm)

• a full set of chromosomes

• a complete replica of the organism