Biology: Genetics - EXT

Question 1

1. DEFINE reproduction

Answer 1

biological process of an organism producing an offspring from at least one parent organism

Question 2

2. IDENTIFY the function of the epididymis

Answer 2

to store matured sperm

Question 3

2. IDENTIFY the function of the scrotum

Answer 3

to regulate the temperature of the testes by holding them outside the body, as body temperature is too hot for sperm to survive.
The scrotum can also retract of it gets to cold

Question 4

2. IDENTIFY the function of semen

Answer 4

to protect, nourish and transport sperm

Question 5

2. IDENTIFY what makes up semen

Answer 5

sperm
prostatic fluid
seminal fluid

Question 6

3. STATE the scientific name for the ‘eggs’ found in human ovaries

Answer 6

Ova (plural);
Ovum (singular)

Question 7

3. IDENTIFY where in the female reproductive system fertilisation often occurs

Answer 7

in the fallopian tubes

Question 8

4. DEFINE embryo

Answer 8

Initial stage of development for a multicellular organism, a ball of cells

Question 9

9. DEFINE dominant gene

Answer 9

alleles which will always be expressed in the phenotype when present; shown with capital letter

Question 10

9. DEFINE recessive gene

Answer 10

alleles that will only be expressed in the absence of a dominant allele; shown with a lowercase

Question 11

3. DEFINE vulva

Answer 11

external part of female reproductive system