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The female ##gametes## called ##eggs## are made in the two ##ovaries##.
The male gametes called ##sperm## are made in the two ##testes##.
The sperm moves through the?
scrotum
uterus
sperm duct
_______ occurs once a month in females.
reproduction
ovulation
jelly coat
Semen is made in the?
ovaries
egg cells
prostrate glands
Explain how sperm and egg cells are made?
Explain how implantation occurs?
The placenta contains ##capillaries## filled with blood from the ##fetus##.
State one function of testosterone?
##HIV/AIDS## is transmitted through sexual contact.
Each chromosome in a cell contains one long molecule of ?
RNA
DNA
mitochondria
A part of the DNA molecule with the instructions for making one kind of protein is called a?
allele
nucleus
gene
Different types of genes is called?
chromosomes
alleles
DNA
Explain what is mieosis?
If two alleles for a gene are the same for eg. BB - this is said to be?
heterozygous
recessive
homozygous
Explain what is meant by phenotype?
A ##recessive allele## only affects the ##phenotype## when there is no dominant allele present.
Explain what is Codominance?
What is the genotype for blood group B?
Ib Ib
Io Io
Ia Ia
Explain what is meant by monohybrid cross?
A womans sex chromosomes are both alike and are called?
Y chromosomes
XY chromosomes
X chromosomes
What is a woman genotype?
XY
Y
XX
What is the genotype for a man with red green colour blindness?
Xb Y
Yb X
XY
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