The father, because the father has a X sperm and Y sperm. If the X sperm goes into the X egg, then the baby will be a female. If the Y sperm goes into the X egg, then it will be a male.
How does gender determination occur quizlet?
The male gamete is responsible for sex determination. The Y chromosome contains the genes for maleness. The female gamete has two X chromosomes. Because the sperm can have either an X or a Y chromosome, the male gamete is responsible for fetal sex determination.
How does gender get determined?
The sex of a baby is determined by two sex chromosomes inherited from both the genetic parents. A baby will normally inherit one sex chromosome from the mother and one from the father. A woman has two X chromosomes and thus gives either of her X chromosomes.
What determines gender in humans quizlet?
Gender is determined by the ratio of the number of X chromosomes to ploidy (or the ratio of X chromosomes to autosome sets). This phenomenon led to the genetic balance theory.
What determines the gender of a child quizlet?
The sex of a child is determined by whether the egg is fertilized by an X-bearing sperm or a Y-bearing sperm.
When can a female begin having children quizlet?
In population A, females begin having children at about age 16. In population B, they begin at about age 20.
How is a male rather than a female zygote created quizlet?
All cells in your body, except the sperm and egg, have 46 chromosomes arranged in 23 pairs. During fertilization, an egg and sperm fuse to create a single cell, called a zygote. The presence of a Y-chromosome is one factor that makes a person male rather than female.
What determines the gender of a child?
Your Baby’s Development
Out of the 46 chromosomes that make up a baby’s genetic material, only two — one from the sperm and one from the egg — determine the baby’s sex. These are known as the sex chromosomes. Every egg has an X sex chromosome; a sperm can have either an X or a Y sex chromosome.
When can you determine gender?
Most doctors schedule an ultrasound at around 18 to 21 weeks, but the sex may be determined by ultrasound as early as 14 weeks . It’s not always 100 percent accurate, though. Your baby might be in an awkward position, which makes it difficult to clearly see the genitals.
Is gender determined by the father?
A child’s sex is always determined by the father, since men cast the deciding chromosome — either an X or a Y — while women produce eggs that carry an X chromosome.
Can a karyotype determine gender?
A karyotype is simply a picture of a person’s chromosomes. … The 23rd pair of chromosomes are the sex chromosomes. They determine an individual’s sex.
What term describes chromosomes that are not involved in gender determination?
Autosome. An autosome is any of the numbered chromosomes, as opposed to the sex chromosomes. Humans have 22 pairs of autosomes and one pair of sex chromosomes (the X and Y). Autosomes are numbered roughly in relation to their sizes.
Which gamete determines the gender of offspring quizlet?
The male gamete determines sex because each male gamete can contribute either an X or a Y chromosome. In humans, the male produces both X- and Y-bearing sperm, whereas females only produce X-bearing eggs. The gene is present in both males and females.
What is the function of blood testis barrier quizlet?
What is the function of the blood testis barrier? -Prevents sperm antigens from contacting systemic and lymph circulations, preventing immune response.
Which of the following is a disadvantage of longitudinal studies quizlet?
They require enormous amounts of time. Another huge drawback to any longitudinal study is the great amount of time it needs to collect all the data that is needed. Usually, it takes a long period of time to gather results before you can start making patterns.