Genetics and stuff liie that you know ye

Question 1

The fertile period

Answer 1

These are the days when the menstrual cycle when the woman is most likely to become pregnant . Intercourse 2 or3 days before, during or after ovulation could lead to fertilization because sperm cells can survive for this long

Question 2

Pause to menstrual cycle

Answer 2

If an egg is paused for the duration of pregnanacy the first sign of pregnancy is often menustration deosnt happen

Question 3

Menopause

Answer 3

Signals the end of a females ability to reproduce and also the end of her menstrul cycle. It happens at differnt ages for differnt people typically in the late 40s to early 50s

Question 4

Testes

Answer 4

Produce sperm

Question 5

Scrotum

Answer 5

Houses the testes its located outside the body to ensure the tempeture is lower than body temputure for healthy sperm

Question 6

Epydidymus

Answer 6

is a coiled tube on the outside Is a coiled tube on the outside of each of the testes that stores sperm and allows them to mature fully

Question 7

Vas deferns

Answer 7

The sperm duct brings the sperm from the testes to the penis

Question 8

Seminal vesticals, prostate gland and cowpers gland

Answer 8

Produce seminil fluid which mixes with sperm to store semen, it nourishes the sperm and allow them to swim

Question 9

Penis

Answer 9

Enters the female and ejaculates semen

Question 10

Pubity

Answer 10

Describes when the body starts becoming sexually mature reproductibe organs develop. It usally happens from 10 to 16

Question 11

Male puberty

Answer 11

In males sex hormones (testostorone) are realesed causing the voice to deepen, hair grows around the sex organs chest and underarms the testes and penis grow bigger and start to produce sperm

Question 12

Female puberty

Answer 12

In females when the sex hormones ( oestragen and progestoerane) are released the breasts develop hips widen, and hair begins to grow on the body

The first egg is realeased from the overias which leads to the first period occuring. An egg will be released every month until menoupause

Question 13

Fertalisation

Answer 13

If an egg is present in the fqllopian tube and a couple have sexual intercourse, then one of the sperm cells may fuse with it

The nuclei of the sperm and egg fuse together to form a fertilised egg

The woman is now pregnant

Question 14

Embryo

Answer 14

The fertilised egg then divides a number of times and the tiny group of cells moves down the falllopian tubes to the uterus

This group of cells settles into the lining of the uterus and continues to divide to form an embryo

Question 15

Zygote - embryo - foetus

Answer 15

Egga and sperm fuse to form a single - zygote

Celln division occurs and growth - embryo

Which attaches to the lining of the uterus (implantation) grows more, and after 8 weeks looks like a human - foetus

Question 16

Pregnancy

Answer 16

The averge length of a human pregnancy is 40 weeks

As the embryo develops in the uterus it is protectected inside a bag of fluid called amniotic fluid. This fluid provides a cushion for the embroyo

Question 17

Umbilical cord

Answer 17

Joins the embryo to the placenta

Question 18

Placenta

Answer 18

Is rich in blood vessals. Its here at the placenta that food and oxygen from the mothers blood pass into the babys blood.
Also wastes such as carbon dioxide pass from the babys blood into the mothers.

Question 19

Birth

Answer 19

The birth of a baby begins to contract when the uterus muscles start to contract. This is called labour. The bag of amniotic fluids bursts “waters break” and further contractions push the baby out usally head first throught the vagina. The umbillical cord is cut and the placenta (after birth ) comes out after.

Question 20

Lactation

Answer 20

The mother may choose to breastfeed the infant
The production of breast milk is called lactation
The first three days is called colostrum- very nutrituis , and helps protect the baby from infection

Question 21

Family planning

Answer 21

To control the number of children you need to control the number of times fertilasition takes place

Natural methods of conteception aim to detect the day ovulation takes place and avoid intercourse during the fertile period

Question 22

Artificial methods of contreception

Answer 22

An example of this is a condom which prevents the sperm from entering the vagina

Another example is the contraceptive pill which prevents ovulation
Its important to realise no method is 100% reliable

Question 23

DNA

Answer 23

Deoxyribonucleic acid

Question 24

Genes

Answer 24

chemicals found on chromosomes that pass on information from parents to children

Question 25

Chromosomes

Answer 25

made of protein + DNA

These carry genes