This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Explain how the sex chromosomes combine to determine the sex of a child during the fertilization of ... (Read 45 times)

luvbio

  • Hero Member
  • *****
  • Posts: 623
on: Jun 22, 2018
Explain how the sex chromosomes combine to determine the sex of a child during the fertilization of an ovum by a sperm.
 
  What will be an ideal response?

Question 2

Explain the primary difference in the ways that simple and complex organisms reproduce.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

leahm14

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jun 22, 2018
Answer to Question 1

The two sex chromosomes, which determine whether a person is male or female, are made up of an X chromosome donated by the mother through the ovum and either an X or a Y chromosome donated by the father's sperm. in normal development, if the male contributes an X chromosome, the child will be female (XX); if he contributes a Y chromosome, the child will be male (XY).

Answer to Question 2

Simpler organisms, such as amoebas, simply split in two, creating a pair genetically identical to the parent amoeba. More complex organisms, however, reproduce through sexual reproduction, in which two parents each donate a gamete, or germ cell, the two of which combine to create a new organism.


luvbio

  • Member
  • Posts: 623
Reply 2 on: Jun 22, 2018
:D TYSM

mammy1697

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Fertilization Fertilization
Measles. A photograph of a child stricken with measles, showing the tell-tale sign of the skin rash. Measles. A photograph of a child stricken with measles, showing the tell-tale sign of the skin rash.
The system moves at 1.50 2 m/s while the inclined planes are rough. a) Determine the ... The system moves at 1.50 2 m/s while the inclined planes are rough. a) Determine the ...
How to calculate the DRT to determine which is more effective against the pathogen How to calculate the DRT to determine which is more effective against the pathogen
Anatomic and Physiologic Considerations with Infant and Child Patients Anatomic and Physiologic Considerations with Infant and Child Patients
Pulse–chase labeling evidence of bidirectional DNA replication in mammalian chromosomes Pulse–chase labeling evidence of bidirectional DNA replication in mammalian chromosomes
Video: Chloroplast Structure & Light Dependent Reactions (Photosystem 1 and 2 Cyclic Electron Flow)

For a complete list of videos, visit our video library