Chromosomes Answers

Identify the structures on the right.Label A ✔ DNAnucleuschromosomehistoneLabel B X DNAnucleuschromosome✔ histoneLabel C DNAnucleus✔ chromosomehistoneLabel D DNA✔ nucleuschromosomeX histone

A and B are both looking at different views of a protein✔ geneX nucleus.

Identify the structures seen to the right.A is pointing to a protein✔ genenucleus.

B is representing a section of DNA that codes for a particular trait, which is a protein✔ genenucleus.

Which phrases describe homologous chromosomes?

HH ✔ homozygousX heterozygousHh homozygous✔ heterozygoushh ✔ homozygousheterozygous

The alleles pictured are homozygous✔ heterozygous

Identify the type of chromosomal abnormality described below.X polyploidy✔ aneuploidy A person has a missing copy of the X chromosome.✔ trisomytetraploidy A baby has an extra copy of chromosome 18. ✔ polysomytrisomy A fetus is found to have four copies of chromosome 1.

Identify the type of chromosomal disorder described below.Turner syndrome✔ Down syndromeX Klinefelter syndrome is known as trisomy 21 and impacts brain and body development.Turner syndromeDown syndrome✔ Klinefelter syndrome predominantly affects males and their fertility.✔ Turner syndromeDown syndromeKlinefelter syndrome predominantly affects females and can impact their growth.

Is there anything abnormal with this karyotype?

Which syndrome does this person have?