Which combination of alleles best describes a sex-linked trait?
heterozygous alleles
homozygous alleles
alleles that are carried on x and y chromosomes
alleles that are carried on somatic cells

alleles that are carried on X and Y chromosomes

Explanation:

In humans there are 22 pairs of autosomal chromosomes and i pair of sex chromosome which is composed of two types X and Y.

alleles XX represents female and XY represent male. Mother can randomly pass her on X chromosome to son and one to daughter but father will pass his X chromosome to daughter and Y to his son i,e why we can say that the genes located on X and Y chromosomes will determine the Sex linked trait

The combination of alleles best describes a sex-linked trait is homozygous alleles

Explanation:

the answer is admiramos

the rule for verbs is whoever you are referring to (in this case 'nosotros'), you need to change the ending of the word.

nosotros - amos

yo - o

tu - as

el, ella, usted - a

ellos, ellas, ustedes - an

(examples: nosotros bailamos (instead of bailar) or yo hablo (instead of habla)