Life Science Unit Review

A particular kind of plant has a trait with two variations: the stalks (trait) are either fuzzy or smooth (variations). Malika has been doing experiments with these plants. These are the results she got when crossing the plants.

A. Crossing 2 smooth plants gave all smooth plant offspring.

B. Crossing 2 fuzzy plants gave all fuzzy plant offspring.

C. Crossing a smooth plant with a fuzzy plant gave all fuzzy offspring.

Look at the offspring from cross C. If Malika tries crossing these fuzzy offspring with smooth plants, they will produce _____.

• all smooth plants

• all fuzzy plants

• some fuzzy and some smooth plants

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is a possible genotype for the plants with fuzzy stalks? Check all that apply.

• f/s

• f/f

• s/s

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which allele(fuzzy or smooth) is dominant (stronger) in the stalk trait?

• The smooth allele is dominant.

• The fuzzy allele is dominant.

• The smooth allele is dominant sometimes

• Both alleles are equally dominant.

Tags

NGSS.HS-LS3-2

Khalid and Rahim are brothers. Both of their parents have brown eyes. Khalid also has brown eyes but Rahim’s eyes are grey. Which of the following explains why the brothers have different eye color?

• Parents who both have brown eyes always have at least one offspring with gray eyes.

• Offspring from the same parents always inherit the same traits.

• Sometimes an offspring can have a trait that neither parent has.

• Eye color is not an inherited trait.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Examine the pedigree above. Which of the following statements best fits the data?

• Two parents with widow's peaks only have children with widow's peaks.

• Two parents with no widow's peak only have children with no widow's peak.

• If parents do not match on the widow's peak trait, the children will have no widow's peak.

• If parents do not match on the trait, the children will all have widow’s peak.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

There are over 300 types of dog breeds that originated from one ancestral dog variety, the Eurasian wolf. The diagram shows four dog breeds and the Eurasian wolf. What is one of the processes involved in the selective breeding that caused this phenomenon?

• Choosing individuals from different species to breed together

• Allowing individuals to reproduce without interference

• Choosing individuals with desirable features

• Crossing the Eurasian wolf with the red fox

Tags

NGSS.HS-LS4-4

Students tested three different temperatures of water to determine if temperature had an effect on the development and hatching of zebrafish embryos from the chorions (outer membrane like a shell). Three separate groups of zebrafish embryos were allowed to develop in 3 days. Each group consisted of 100 embryos and was placed in a constant temperature for the 3 day development. The students recorded the number of hatched larvae on Day 3.

What conclusion(s) can best be drawn from the following data?

• A temperature of 50o F is the most effective for hatching zebrafish embryos by day three.

• A temperature of 65o F is the more effective than 90oF for hatching zebrafish embryos by day three

• A temperature of 65o F is the more effective than 50o F and less effective than 90oF for hatching zebrafish embryos by day three.

• Different temperatures have no effect on zebrafish development.

Which of the following statement can be used as a conclusion from the graph?

• Sulfur dioxide pollution causes more lichen to grow on trees.

• An increase in sulfur dioxide pollution causes a decrease in lichen coverage.

• Lichen is an organism that releases sulfur dioxide into the atmosphere

• An increase in sulfur dioxide pollution causes an increase in lichen coverage.

Tags

NGSS.HS-LS4-5

Using the information in the pedigree, what is Ravyn's genotype?

• AA

• Aa

• aa

• XY

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Using the information in the pedigree, what would be the genotype of Ravyn's father?

• AA

• Aa

• XY

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2