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

Author Question: During a prenatal visit, a patient asks what determines the sex of the baby. The correct explanation ... (Read 111 times)

rosent76

  • Hero Member
  • *****
  • Posts: 516
on: Jun 28, 2018
During a prenatal visit, a patient asks what determines the sex of the baby. The correct explanation is that:
 
  a. The mother determines the sex by the number of Y chromosomes she contributes.
  b. Females have X chromosomes only, and males have Y chromosomes only, so there are equal chances of each child being male or female.
  c. Two X chromosomes produce a female child, whereas two Y chromosomes produce a male child.
  d. If the father contributes an X chromosome, the baby will be a girl; if he contributes a Y chromosome, the baby will be a boy.

Question 2

The nucleus of each somatic (body) cell contains _____ chromosomes.
 
  a. 23
  b. 28
  c. 46
  d. 48


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

choc0chan

  • Sr. Member
  • ****
  • Posts: 362
Reply #1 on: Jun 28, 2018
Answer to Question 1

ANS: D
The ovum has two X chromosomes; the sperm has one X and one Y chromosome. If the sperm contributes the X chromosome, the zygote will have two X chromosomes and will be female. If the sperm contributes the Y chromosome, the zygote will have one X and one Y chromosome and will be male.

Answer to Question 2

ANS: C
Each somatic cell contains 22 pairs of autosomes and two sex chromosomes for a total of 46.


rosent76

  • Member
  • Posts: 516
Reply 2 on: Jun 28, 2018
Wow, this really help

mcarey591

  • Member
  • Posts: 365
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

The nurse assists the patient in reflecting on his feelings The nurse assists the patient in reflecting on his feelings
Sublingual medication administration. Photograph of a male patient placing a nitroglycerine tablet u Sublingual medication administration. Photograph of a male patient placing a nitroglycerine tablet u
Patient teaching: nail assessment Patient teaching: nail assessment
EHR systems enable providers to view patient records across organizations. EHR systems enable providers to view patient records across organizations.
Koplik spots in the mouth of a patient with measles. Koplik spots in the mouth of a patient with measles.
Foods for Baby’s First Year Foods for Baby’s First Year
Video: Antidiuretic hormone (vasoconstriction, water reabsorption & sweat inhibition)

For a complete list of videos, visit our video library