Chromosomes

Which of the following statements about homologous chromosomes is correct?

• Each gene is at the same locus on both chromosomes.
• They are two identical copies of a parent chromosome which are attached to one another at the centromere.
• They come from the same parent.
• They are chromosomes that have identical genes and alleles.

Tags

NGSS.HS-LS3-2

The structure labeled A is a(n)

• chromatid
• centriole
• centromere
• chromophere

Tags

NGSS.HS-LS1-4

The structures labeled B are

• centrioles
• chromatids
• centromeres
• chromopheres

Tags

NGSS.HS-LS1-4

chromosomes that have the same sequence of genes and the same structure

• homologous chromosomes
• alleles
• phenotypes
• genotypes

Tags

NGSS.HS-LS3-1

The haploid number of human chromosomes is

• 11
• 12
• 23
• 46

Tags

NGSS.HS-LS3-2

The diploid number of human chromosomes is

• 23
• 46
• 92

Tags

NGSS.HS-LS3-2

Histones are 

• proteins wound up in DNA
• critical to maintaining the shape of chromosomes
• aid in the tight packing of DNA
• all of these 

Tags

NGSS.HS-LS1-1

Autosomes are

• chromosomes found in autotrophs, only
• chromosomes that automatically correct all errors in the DNA
• chromosomes that determine traits other than sex
• chromosomes that determine the sex of the individual

Tags

NGSS.HS-LS3-1

n : haploid :: 2n :

• autosome
• sex chromsome
• double haploid
• diploid

Autosomes can be defined as:

• chromosomes that help express physical traits
• chromosomes that express gender
• cells that express traits
• cells that express gender

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2