TA Section 8 (4/18)

____ are haploid, and combine to form a ____ which is diploid.

• gametes, zygote

• zygotes, gamete

What type of signaling causes embryonic cells to adopt a germ cell fate?

• Oct4

• Blimp1

• BMP

• REPLACE

What type of somatic cells are present in the testis to produce testosterone?

• Granulose cells

• Spermatozoa cells

• Theca cells

• Leydig cells

What is the outcome of meiosis (the total process)?

• 2 diploid cells

• 1 diploid cell

• 2 haploid cells

• 4 haploid cells

What process occurs during meiosis but NOT during mitosis?

• Lining up of chromosomes on metaphase plate

• Recombination/"crossing over"

• Chromosome duplication

• Cohesin tethering sister chromatids together

During which stage of meiosis do the sister chromatids function as a single unit, and are not separated from one another?

• Meiosis I anaphase

• Meiosis II anaphase

What type of protein is TAF4b?

• Protease

• Kinase

• Transcription factor

• Cytoskeletal

Which of the following is not an example of paracrine signaling?

• EGF

• BMP

• GABA

• WNT

Estrogen is

• a peptide hormone

• produced by the granulosa cells of the ovary

• large

• hydrophilic

Delta = ___; Notch = ___

• receptor; ligand

• ligand; receptor

• contact; space

• space; contact