D3.1 Reproduction Questionbank

To duplicate all chromosomes in daughter cells

To produce identical gametes

To halve the chromosome number and introduce variation

To trigger mitosis in sperm cells

Dull colors and feathery stigma

Wind-activated petals

Bright colors and sticky pollen

No scent and small petals

The test strip is faulty and contains no monoclonal antibodies at the test line.

The urine did not reach the test line due to a blocked membrane.

The concentration of hCG in the urine was too low to bind to the test line antibodies.

The woman is not pregnant and thus no hCG was present to trigger the test line.

It represents the completion of meiosis I, producing a secondary oocyte and a first polar body through asymmetric division.

It marks the completion of meiosis II following fertilization, resulting in a haploid ovum and a second polar body.

It is the first meiotic division producing two equal daughter cells, each capable of fertilization.

It shows asymmetric division after mitosis, generating one polar body and one functional diploid ovum.

To stop menstruation entirely

To allow fertilization inside the uterus

To stimulate superovulation and increase egg production

To speed up mitosis in embryos

To allow pollination

To trigger germination

To spread offspring to new areas for growth

To feed pollinating animals

Progesterone

Testosterone

Luteinizing hormone (LH)

Prolactin

A sharp rise in hCG causes uterine contractions to begin.

A simultaneous drop in oestrogen and progesterone promotes labour.

A decrease in progesterone removes inhibition of oxytocin release, leading to labour.

Peak progesterone levels at week 40 prevent uterine contractions.

Site of sperm production

Passageway for the egg to reach the uterus

Site of implantation

Location of menstrual blood flow

It eliminates all mutations.

It ensures gametes are genetically identical.

It reduces the chromosome number so that fertilization restores diploidy.

It speeds up mitosis.