Lecture 34

Question 1

Warm conditions for an egg make what gender sea turtle?

Answer 1

male

Question 2

Cool conditions for an egg make what gender sea turtle?

Answer 2

female

Question 3

Asparagus exhibit what type of autosomal gene regarding the M gene? What is male? What is female?

Answer 3

single autosomal gene

M/m = male

m/m = female

Question 4

M/m is what gender asparagus plant?

Answer 4

male

Question 5

What is haplodiploid sex determination?

Answer 5

males come from unfertilized eggs, and are haploid

females come from fertilized eggs, and are diploid

Question 6

Haplodiploidy occurs in what type of organisms?

Answer 6

Hymenoptera: bees, wasps, ants

Question 7

For ants, which gender are the workers?

Answer 7

females

Question 8

For bees, what gender are the workers? drones?

Answer 8

female

male

Question 9

What does the worker bee do?

queen?

drone?

Answer 9

build hive, give food, feed young

reprod

reprod

Question 10

Which bee type is sterile? The rest are fertile

Answer 10

worker

Question 11

Which bee type is haploid? The rest are diploid

Answer 11

drone

Question 12

What causes a bee to turn into a queen bee?

Answer 12

when a fertilized egg is fed royal jelly

Question 13

Z and W sex chromosomes occur in what animals? What is male? female?

Answer 13

bird and butterflies

male = Z/Z

female = Z/W

Question 14

How are mosquitos’ sex determined?

Answer 14

single autosomal gene

nix locus is located on a male specific autosomal region (this is the male determining factor)

Question 15

Mosquito with Nix-Nix- is what gender?

Answer 15

female

Question 16

Mosquito with Nix+Nix- is what?

Answer 16

male

Question 17

X and Y sex chromosomes occurs in:

Answer 17

placentals, marsupials, monotremes