Sexual linked traits Flashcards
1
Q
where are the alleles for sexual inheritance
A
sex chromosomes
2
Q
who is mainly affected by sex linked traits
A
males
3
Q
what sex chromosome is affected most by sex linked traits
A
X
4
Q
if recessive then what case is subscript letter in
A
lower case eg having haemophilia is h not H
5
Q
what is genotype
A
the letters
6
Q
what is phenotype
A
observable traits
7
Q
Hermaphrodite
A
Species that have functioning male and female reproductive organs in each individual
8
Q
Hermaphrodites usually have a partner with which to exchange gametes (male and female) true or false
A
True
9
Q
Advantage of being hermaphrodite
A
If chance of encountering a partner is an uncommon event it is fine as there is no requirement for that partner to be of the opposite sex
10
Q
Rather than genetic factors, what effects sex and sex ratio
A
Environmental factors Size Competition Parasitic infection Temperature of egg incubation Resource availability
