Question

choose a word from the drop - down menu for each blank to complete the sentences below.
the choice 1 above is for an individual with trisomy 21. this error in replication occurs during choice 2.
? examine the figure below
cladogram
karyotype
proteome
transcriptome
anaphase
metaphase
prophase
telophase

Explanation:

A karyotype is a visual display of an individual's chromosomes. Trisomy 21 (Down syndrome) is a chromosomal disorder where there is an extra copy of chromosome 21. Nondisjunction (error in chromosome separation) during anaphase (either in meiosis I or II) can lead to such chromosomal abnormalities. In anaphase, sister chromatids (or homologous chromosomes in meiosis I) are supposed to separate and move to opposite poles. If they fail to separate (nondisjunction), gametes with an abnormal number of chromosomes are produced.

Answer:

CHOICE 1: karyotype; CHOICE 2: anaphase