Biology SOL Review

Front

What is the best tool for examining chromosomes from animal cells?

Back

Compound microscope.

Front

In genetics, what does it mean for an allele to be dominant?

Back

A dominant allele is one that expresses its trait even when only one copy is present.

Front

What is the probability of a child having unattached earlobes if one parent is heterozygous (Ee) and the other is homozygous recessive (ee)?

Back

50%.

Front

What are the possible genotypes of children from a DD (dimples) and Dd (dimples) parent?

Back

The possible genotypes are DD and Dd.

Front

What is the predicted ratio of children with dimples to children without dimples from a DD and Dd parent?

Back

100% with dimples to 0% without dimples.

Front

What is the significance of the nitrogen bases in a DNA sequence?

Back

Nitrogen bases (A, T, C, G) are the building blocks of DNA and encode genetic information.

Front

What does a recessive allele require to express its trait?

Back

A recessive allele requires two copies (homozygous) to express its trait.

Front

How can you determine the length of leaves collected in a research project?

Back

By analyzing the data presented in a graph or chart.

Front

What are the four nitrogen bases found in DNA?

Back

Adenine (A), Thymine (T), Cytosine (C), and Guanine (G).

Front

What is the purpose of a compound microscope in biological studies?

Back

To magnify small specimens, such as cells and chromosomes, for detailed examination.