A human being has _____ autosomes and ______ sex chromosomes

23, 1

22 pairs, 1 pair

23, 23

2, 2

2. A section of chromosomes that codes for a trait can be called a(n):

nucleotide

base-pair

gene

nucleus

3. Somatic cells of a human have ____ chromosomes and are called ____

10, haploid

92, diploid

23, haploid

46, diploid

4. A person who receives an extra chromosome, could have:

Heightened intelligence

Down Syndrome

Red eyes

Polygenic traits

5. Each chromosome consists of two identical:

genes

nuclei

chromatids

bases

6. If a person receives an X and a Y chromosome, that person is:

female

male

red eyed

mentally challenged

7. Two alleles for pea plant height are designated T (tall) and t (dwarf). These alleles are found on:

genes

sex chromosomes

ribosomes

homologous chromosomes

8. An animal has 40 chromosomes in its gametes, how many chromosomes would you expect to find in this animal's brain cells?

1

20

40

80

9. A picture of a person's chromosomes is called a(n):

karyotype

syndrome

chromatin

fingerprint

10. During which phase of mitosis is DNA replicated?
interphase
prophase
anaphase
telophase