Biology 3.1 - 3.3

A segment of DNA that codes for a trait

• gene

• allele

• chromosome

• chromatid

Tags

NGSS.HS-LS3-1

NGSS.HS-LS1-1

Which process and type of resulting cells are represented?

• mitosis, gametes
• mitosis, body cells
• meiosis, gametes
• meiosis, body cells

Tags

NGSS.HS-LS3-2

NGSS.HS-LS1-4

Which of the following cell types is formed by meiosis?

• muscle cells
• skin cells
• sperm cells
• blood cells

Tags

NGSS.HS-LS3-2

Which best describes the process shown?

• mutation in which the DNA content of the gene is ltered
• segregation of sister chromatids
• condensation and segregation of the alleles
• crossing-over which alleles are exchanged

Tags

NGSS.HS-LS1-4

Which of the following is an inherited disease that is due to a base substitution mutation in a gene?

• Trisomy 21
• Sickle cell anemia
• AIDS
• Type II Diabetes

What is the cause of sickle-cell anemia?

• A change to the base sequence of a hemoglobin gene
• Mosquitos acting as the vector for malaria
• Iron deficiency due to the malaria parasite
• Production of more white blood cells than red blood cells by bone marrow

Which of the following types of information are needed to construct a karyotype?  
I.  Size of the chromosomes  
II. Gene mutations of the chromosomes  
III. Age of the individual

• I only
• II only
• I and II
• I, II and III

What does the karyotype below correspond to?

• A normal male
• A normal female
• A female with Down Syndrome
• A male with Down Syndrome

Tags

NGSS.HS-LS3-2

What can be concluded from the karyotype  provided below?

• There was non-disjunction during meiosis in the mother.
• There was non-disjunction during meiosis in the father.
• The fetus is male.
• The fetus is female.

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1

A human cell has between 20,000-25,000 genes whereas an E. coli cell has approximately 4,000 genes.  Which of the following statements is true?

• The human genome is larger than the E. coli genome
• There are more genes on each human chromosome than on the E. coli chromosome
• The human cell and the E. coli cell produce approximately the same variety of proteins
• The DNA in both organisms is associated with histones (proteins)