EOC 7th grade Science

All organisms have a set of instructions that specifies its traits called?

• Blue Prints
• DNA
• Deoxy
• RNA

DNA is compressed into what?

• Tetrads
• DNA
• Genes
• Chromosomes

The passage of genetic instruction from one generation to another is called?

• Genes
• DNA
• Heredity
• Parents

Having attached or unattached earlobes is an inherited trait. The figure below shows an attached earlobe and the two alleles responsible for this trait.Which statement correctly describes the genotype and phenotype?

• The genotype is the attached earlobe, and the phenotype is e.
• The genotype is e, and the phenotype is the attached earlobe.
• The genotype is the attached earlobe, and the phenotype is ee.
• The genotype is ee, and the phenotype is the attached earlobe

Delia is teaching her sister about important molecules in the body. She tells her sister that one molecule provides a set of instructions that determines traits, such as eye color or hair color. Which molecule is Delia describing?

• DNA
• Glucose
• Cellulose
• Cholesterol

Raylene inherited certain physical characteristics from her parents. Which of these follow is not an inherited characteristic?

• Blue Eyes
• Wavy, Red Hair
• Dimpled Cheeks
• Long Fingernails

A plant can have either purple or white flowers. A plant with two alleles for white flowers id crossed with a plant with two alleles for purple flowers. Which result would show that purple flower color is the dominant trait?

• All of the offspring have white flowers.
• All of the offspring have purple flowers. 
• Half of the offspring have white flowers. 
• Half of the offspring have purple flowers.

Which of the following choices gives the alleles of the parents shown here?

• BB and BB
• BB and Bb
• Bb and Bb
• Bb and bb

What is the correct ratio of the offspring in the following punnett square?

• 1 BB: 2 Bb: 1 bb
• 4 BB
• 2 Bb: 2 bb
• 2 BB: 2 Bb

What is the division of body cells into two daughter cells?

• Mitosis
• Meiosis
• Tetrads
• Cells